diff --git a/002_source/cms/src/app/dashboard/lp_categories/[cat_id]/BasicDetailCard.tsx b/002_source/cms/src/app/dashboard/lp_categories/[cat_id]/BasicDetailCard.tsx
deleted file mode 100644
index 176fc8c..0000000
--- a/002_source/cms/src/app/dashboard/lp_categories/[cat_id]/BasicDetailCard.tsx
+++ /dev/null
@@ -1,79 +0,0 @@
-'use client';
-
-import * as React from 'react';
-import Avatar from '@mui/material/Avatar';
-import Card from '@mui/material/Card';
-import CardHeader from '@mui/material/CardHeader';
-import Chip from '@mui/material/Chip';
-import Divider from '@mui/material/Divider';
-import IconButton from '@mui/material/IconButton';
-import { PencilSimple as PencilSimpleIcon } from '@phosphor-icons/react/dist/ssr/PencilSimple';
-import { User as UserIcon } from '@phosphor-icons/react/dist/ssr/User';
-import { useTranslation } from 'react-i18next';
-
-import { PropertyItem } from '@/components/core/property-item';
-import { PropertyList } from '@/components/core/property-list';
-import { LpCategory } from '@/components/dashboard/lp_categories/type';
-
-export default function BasicDetailCard({
-  lpModel: model,
-  handleEditClick,
-}: {
-  lpModel: LpCategory;
-  handleEditClick: () => void;
-}): React.JSX.Element {
-  const { t } = useTranslation();
-
-  return (
-    <Card>
-      <CardHeader
-        action={
-          <IconButton
-            onClick={() => {
-              handleEditClick();
-            }}
-          >
-            <PencilSimpleIcon />
-          </IconButton>
-        }
-        avatar={
-          <Avatar>
-            <UserIcon fontSize="var(--Icon-fontSize)" />
-          </Avatar>
-        }
-        title={t('list.basic-details')}
-      />
-      <PropertyList
-        divider={<Divider />}
-        orientation="vertical"
-        sx={{ '--PropertyItem-padding': '12px 24px' }}
-      >
-        {(
-          [
-            {
-              key: 'Customer ID',
-              value: (
-                <Chip
-                  label={model.id}
-                  size="small"
-                  variant="soft"
-                />
-              ),
-            },
-            { key: 'Name', value: model.cat_name },
-            { key: 'Remarks', value: model.remarks },
-            { key: 'Description', value: model.description },
-          ] satisfies { key: string; value: React.ReactNode }[]
-        ).map(
-          (item): React.JSX.Element => (
-            <PropertyItem
-              key={item.key}
-              name={item.key}
-              value={item.value}
-            />
-          )
-        )}
-      </PropertyList>
-    </Card>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_categories/[cat_id]/TitleCard.tsx b/002_source/cms/src/app/dashboard/lp_categories/[cat_id]/TitleCard.tsx
deleted file mode 100644
index f1ad1bc..0000000
--- a/002_source/cms/src/app/dashboard/lp_categories/[cat_id]/TitleCard.tsx
+++ /dev/null
@@ -1,73 +0,0 @@
-'use client';
-
-import * as React from 'react';
-import { Button } from '@mui/material';
-import Avatar from '@mui/material/Avatar';
-import Chip from '@mui/material/Chip';
-import Stack from '@mui/material/Stack';
-import Typography from '@mui/material/Typography';
-import { CaretDown as CaretDownIcon } from '@phosphor-icons/react/dist/ssr/CaretDown';
-import { CheckCircle as CheckCircleIcon } from '@phosphor-icons/react/dist/ssr/CheckCircle';
-import { useTranslation } from 'react-i18next';
-
-import { LpCategory } from '@/components/dashboard/lp_categories/type';
-
-function getImageUrlFrRecord(record: LpCategory): string {
-  return `http://127.0.0.1:8090/api/files/${record.collectionId}/${record.id}/${record.cat_image}`;
-}
-
-export default function SampleTitleCard({ lpModel }: { lpModel: LpCategory }): React.JSX.Element {
-  const { t } = useTranslation();
-
-  return (
-    <>
-      <Stack
-        direction="row"
-        spacing={2}
-        sx={{ alignItems: 'center', flex: '1 1 auto' }}
-      >
-        <Avatar
-          variant="rounded"
-          src={getImageUrlFrRecord(lpModel)}
-          sx={{ '--Avatar-size': '64px' }}
-        >
-          {t('empty')}
-        </Avatar>
-        <div>
-          <Stack
-            direction="row"
-            spacing={2}
-            sx={{ alignItems: 'center', flexWrap: 'wrap' }}
-          >
-            <Typography variant="h4">{lpModel.cat_name}</Typography>
-            <Chip
-              icon={
-                <CheckCircleIcon
-                  color="var(--mui-palette-success-main)"
-                  weight="fill"
-                />
-              }
-              label={lpModel.visible}
-              size="small"
-              variant="outlined"
-            />
-          </Stack>
-          <Typography
-            color="text.secondary"
-            variant="body1"
-          >
-            {lpModel.slug}
-          </Typography>
-        </div>
-      </Stack>
-      <div>
-        <Button
-          endIcon={<CaretDownIcon />}
-          variant="contained"
-        >
-          {t('list.action')}
-        </Button>
-      </div>
-    </>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_categories/[cat_id]/page.tsx b/002_source/cms/src/app/dashboard/lp_categories/[cat_id]/page.tsx
deleted file mode 100644
index 366c535..0000000
--- a/002_source/cms/src/app/dashboard/lp_categories/[cat_id]/page.tsx
+++ /dev/null
@@ -1,138 +0,0 @@
-'use client';
-
-import * as React from 'react';
-import RouterLink from 'next/link';
-import { useParams, useRouter } from 'next/navigation';
-import SampleAddressCard from '@/app/dashboard/Sample/AddressCard';
-import { SampleNotifications } from '@/app/dashboard/Sample/Notifications';
-import SamplePaymentCard from '@/app/dashboard/Sample/SamplePaymentCard';
-import SampleSecurityCard from '@/app/dashboard/Sample/SampleSecurityCard';
-import { COL_QUIZ_LP_CATEGORIES } from '@/constants';
-import Box from '@mui/material/Box';
-import Link from '@mui/material/Link';
-import Stack from '@mui/material/Stack';
-import Grid from '@mui/material/Unstable_Grid2';
-import { ArrowLeft as ArrowLeftIcon } from '@phosphor-icons/react/dist/ssr/ArrowLeft';
-import type { RecordModel } from 'pocketbase';
-import { useTranslation } from 'react-i18next';
-
-import { paths } from '@/paths';
-import { logger } from '@/lib/default-logger';
-import { pb } from '@/lib/pb';
-import { toast } from '@/components/core/toaster';
-import ErrorDisplay from '@/components/dashboard/error';
-import { defaultLpCategory } from '@/components/dashboard/lp_categories/_constants.ts';
-import { Notifications } from '@/components/dashboard/lp_categories/notifications';
-import type { LpCategory } from '@/components/dashboard/lp_categories/type';
-import FormLoading from '@/components/loading';
-
-import BasicDetailCard from './BasicDetailCard';
-import TitleCard from './TitleCard';
-
-export default function Page(): React.JSX.Element {
-  const { t } = useTranslation();
-  const router = useRouter();
-  //
-  const { cat_id: catId } = useParams<{ cat_id: string }>();
-  //
-  const [showLoading, setShowLoading] = React.useState<boolean>(true);
-  const [showError, setShowError] = React.useState({ show: false, detail: '' });
-
-  //
-  const [showLessonCategory, setShowLessonCategory] = React.useState<LpCategory>(defaultLpCategory);
-
-  function handleEditClick() {
-    router.push(paths.dashboard.lp_categories.edit(showLessonCategory.id));
-  }
-
-  React.useEffect(() => {
-    if (catId) {
-      pb.collection(COL_QUIZ_LP_CATEGORIES)
-        .getOne(catId)
-        .then((model: RecordModel) => {
-          setShowLessonCategory({ ...defaultLpCategory, ...model });
-        })
-        .catch((err) => {
-          logger.error(err);
-          toast(t('list.error'));
-
-          setShowError({ show: true, detail: JSON.stringify(err) });
-        })
-        .finally(() => {
-          setShowLoading(false);
-        });
-    }
-  }, [catId]);
-
-  if (showLoading) return <FormLoading />;
-  if (showError.show)
-    return (
-      <ErrorDisplay
-        message={t('error.unable-to-process-request')}
-        code="500"
-        details={showError.detail}
-      />
-    );
-
-  return (
-    <Box
-      sx={{
-        maxWidth: 'var(--Content-maxWidth)',
-        m: 'var(--Content-margin)',
-        p: 'var(--Content-padding)',
-        width: 'var(--Content-width)',
-      }}
-    >
-      <Stack spacing={4}>
-        <Stack spacing={3}>
-          <div>
-            <Link
-              color="text.primary"
-              component={RouterLink}
-              href={paths.dashboard.lesson_categories.list}
-              sx={{ alignItems: 'center', display: 'inline-flex', gap: 1 }}
-              variant="subtitle2"
-            >
-              <ArrowLeftIcon fontSize="var(--icon-fontSize-md)" />
-              {t('list.title')}
-            </Link>
-          </div>
-          <Stack
-            direction={{ xs: 'column', sm: 'row' }}
-            spacing={3}
-            sx={{ alignItems: 'flex-start' }}
-          >
-            <TitleCard lpModel={showLessonCategory} />
-          </Stack>
-        </Stack>
-        <Grid
-          container
-          spacing={4}
-        >
-          <Grid
-            lg={4}
-            xs={12}
-          >
-            <Stack spacing={4}>
-              <BasicDetailCard
-                lpModel={showLessonCategory}
-                handleEditClick={handleEditClick}
-              />
-              <SampleSecurityCard />
-            </Stack>
-          </Grid>
-          <Grid
-            lg={8}
-            xs={12}
-          >
-            <Stack spacing={4}>
-              <SamplePaymentCard />
-              <SampleAddressCard />
-              <Notifications notifications={SampleNotifications} />
-            </Stack>
-          </Grid>
-        </Grid>
-      </Stack>
-    </Box>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_categories/create/page.tsx b/002_source/cms/src/app/dashboard/lp_categories/create/page.tsx
deleted file mode 100644
index a3e7882..0000000
--- a/002_source/cms/src/app/dashboard/lp_categories/create/page.tsx
+++ /dev/null
@@ -1,53 +0,0 @@
-'use client';
-
-// RULES:
-// T.B.A.
-//
-import * as React from 'react';
-import RouterLink from 'next/link';
-import Box from '@mui/material/Box';
-import Link from '@mui/material/Link';
-import Stack from '@mui/material/Stack';
-import Typography from '@mui/material/Typography';
-import { ArrowLeft as ArrowLeftIcon } from '@phosphor-icons/react/dist/ssr/ArrowLeft';
-import { useTranslation } from 'react-i18next';
-
-import { paths } from '@/paths';
-import { LpCategoryCreateForm } from '@/components/dashboard/lp_categories/lp-category-create-form';
-
-export default function Page(): React.JSX.Element {
-  // RULES: follow the name of page directory
-  const { t } = useTranslation(['lp_categories']);
-
-  return (
-    <Box
-      sx={{
-        maxWidth: 'var(--Content-maxWidth)',
-        m: 'var(--Content-margin)',
-        p: 'var(--Content-padding)',
-        width: 'var(--Content-width)',
-      }}
-    >
-      <Stack spacing={4}>
-        <Stack spacing={3}>
-          <div>
-            <Link
-              color="text.primary"
-              component={RouterLink}
-              href={paths.dashboard.lesson_categories.list}
-              sx={{ alignItems: 'center', display: 'inline-flex', gap: 1 }}
-              variant="subtitle2"
-            >
-              <ArrowLeftIcon fontSize="var(--icon-fontSize-md)" />
-              {t('title')}
-            </Link>
-          </div>
-          <div>
-            <Typography variant="h4">{t('create.title')}</Typography>
-          </div>
-        </Stack>
-        <LpCategoryCreateForm />
-      </Stack>
-    </Box>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_categories/edit/[cat_id]/_PROMPT.md b/002_source/cms/src/app/dashboard/lp_categories/edit/[cat_id]/_PROMPT.md
deleted file mode 100644
index abf4465..0000000
--- a/002_source/cms/src/app/dashboard/lp_categories/edit/[cat_id]/_PROMPT.md
+++ /dev/null
@@ -1,11 +0,0 @@
-# task
-
-## instruction
-
-with reference to `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/app/_helloworld/page.tsx`
-
-with reference to `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/app/dashboard/lesson_types/edit/[typeId]/page.tsx`
-
-please modify `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/app/dashboard/lesson_categories/edit/page.tsx`
-
-please draft a tsx for showing error to user thanks,
diff --git a/002_source/cms/src/app/dashboard/lp_categories/edit/[cat_id]/page.tsx b/002_source/cms/src/app/dashboard/lp_categories/edit/[cat_id]/page.tsx
deleted file mode 100644
index 9f7f258..0000000
--- a/002_source/cms/src/app/dashboard/lp_categories/edit/[cat_id]/page.tsx
+++ /dev/null
@@ -1,53 +0,0 @@
-'use client';
-
-import * as React from 'react';
-import RouterLink from 'next/link';
-import Box from '@mui/material/Box';
-import Link from '@mui/material/Link';
-import Stack from '@mui/material/Stack';
-import Typography from '@mui/material/Typography';
-import { ArrowLeft as ArrowLeftIcon } from '@phosphor-icons/react/dist/ssr/ArrowLeft';
-import { useTranslation } from 'react-i18next';
-
-import { paths } from '@/paths';
-import { LpCategoryEditForm } from '@/components/dashboard/lp_categories/lp-category-edit-form';
-
-export default function Page(): React.JSX.Element {
-  const { t } = useTranslation(['lp_categories']);
-
-  React.useEffect(() => {
-    // console.log('helloworld');
-  }, []);
-
-  return (
-    <Box
-      sx={{
-        maxWidth: 'var(--Content-maxWidth)',
-        m: 'var(--Content-margin)',
-        p: 'var(--Content-padding)',
-        width: 'var(--Content-width)',
-      }}
-    >
-      <Stack spacing={4}>
-        <Stack spacing={3}>
-          <div>
-            <Link
-              color="text.primary"
-              component={RouterLink}
-              href={paths.dashboard.lp_categories.list}
-              sx={{ alignItems: 'center', display: 'inline-flex', gap: 1 }}
-              variant="subtitle2"
-            >
-              <ArrowLeftIcon fontSize="var(--icon-fontSize-md)" />
-              {t('edit.title')}
-            </Link>
-          </div>
-          <div>
-            <Typography variant="h4">{t('edit.title')}</Typography>
-          </div>
-        </Stack>
-        <LpCategoryEditForm />
-      </Stack>
-    </Box>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_categories/lp-categories-sample-data.tsx b/002_source/cms/src/app/dashboard/lp_categories/lp-categories-sample-data.tsx
deleted file mode 100644
index 0c1aa79..0000000
--- a/002_source/cms/src/app/dashboard/lp_categories/lp-categories-sample-data.tsx
+++ /dev/null
@@ -1,90 +0,0 @@
-import { dayjs } from '@/lib/dayjs';
-import { LessonCategory } from '@/components/dashboard/lesson_category/type';
-
-export const LpCategoriesSampleData = [
-  {
-    id: 'USR-005',
-    name: 'Fran Perez',
-    avatar: '/assets/avatar-5.png',
-    email: 'fran.perez@domain.com',
-    phone: '(815) 704-0045',
-    quota: 50,
-    status: 'active',
-    createdAt: dayjs().subtract(1, 'hour').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-  {
-    id: 'USR-004',
-    name: 'Penjani Inyene',
-    avatar: '/assets/avatar-4.png',
-    email: 'penjani.inyene@domain.com',
-    phone: '(803) 937-8925',
-    quota: 100,
-    status: 'active',
-    createdAt: dayjs().subtract(3, 'hour').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-  {
-    id: 'USR-003',
-    name: 'Carson Darrin',
-    avatar: '/assets/avatar-3.png',
-    email: 'carson.darrin@domain.com',
-    phone: '(715) 278-5041',
-    quota: 10,
-    status: 'blocked',
-    createdAt: dayjs().subtract(1, 'hour').subtract(1, 'day').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-  {
-    id: 'USR-002',
-    name: 'Siegbert Gottfried',
-    avatar: '/assets/avatar-2.png',
-    email: 'siegbert.gottfried@domain.com',
-    phone: '(603) 766-0431',
-    quota: 0,
-    status: 'pending',
-    createdAt: dayjs().subtract(7, 'hour').subtract(1, 'day').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-  {
-    id: 'USR-001',
-    name: 'Miron Vitold',
-    avatar: '/assets/avatar-1.png',
-    email: 'miron.vitold@domain.com',
-    phone: '(425) 434-5535',
-    quota: 50,
-    status: 'active',
-    createdAt: dayjs().subtract(2, 'hour').subtract(2, 'day').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-] satisfies LessonCategory[];
diff --git a/002_source/cms/src/app/dashboard/lp_categories/page.tsx b/002_source/cms/src/app/dashboard/lp_categories/page.tsx
deleted file mode 100644
index 24a908c..0000000
--- a/002_source/cms/src/app/dashboard/lp_categories/page.tsx
+++ /dev/null
@@ -1,213 +0,0 @@
-'use client';
-
-// RULES:
-// contains list page for lp_categories (QuizLPCategories)
-// contain definition to collection only
-//
-import * as React from 'react';
-import { useRouter } from 'next/navigation';
-import { COL_QUIZ_LP_CATEGORIES } from '@/constants';
-import { LoadingButton } from '@mui/lab';
-import Box from '@mui/material/Box';
-import Card from '@mui/material/Card';
-import Divider from '@mui/material/Divider';
-import Stack from '@mui/material/Stack';
-import Typography from '@mui/material/Typography';
-import { Plus as PlusIcon } from '@phosphor-icons/react/dist/ssr/Plus';
-import type { ListResult, RecordModel } from 'pocketbase';
-import { useTranslation } from 'react-i18next';
-
-import { paths } from '@/paths';
-import { logger } from '@/lib/default-logger';
-import { pb } from '@/lib/pb';
-import { toast } from '@/components/core/toaster';
-import ErrorDisplay from '@/components/dashboard/error';
-import { defaultLpCategory } from '@/components/dashboard/lp_categories/_constants';
-import { LpCategoriesFilters } from '@/components/dashboard/lp_categories/lp-categories-filters';
-import type { Filters } from '@/components/dashboard/lp_categories/lp-categories-filters';
-import { LpCategoriesPagination } from '@/components/dashboard/lp_categories/lp-categories-pagination';
-import { LpCategoriesSelectionProvider } from '@/components/dashboard/lp_categories/lp-categories-selection-context';
-import { LpCategoriesTable } from '@/components/dashboard/lp_categories/lp-categories-table';
-import type { LpCategory } from '@/components/dashboard/lp_categories/type';
-import FormLoading from '@/components/loading';
-
-export default function Page({ searchParams }: PageProps): React.JSX.Element {
-  const { t } = useTranslation(['lp_categories']);
-  const { email, phone, sortDir, status, name, visible, type } = searchParams;
-  const router = useRouter();
-  const [lessonCategoriesData, setLessonCategoriesData] = React.useState<LpCategory[]>([]);
-  //
-
-  const [isLoadingAddPage, setIsLoadingAddPage] = React.useState<boolean>(false);
-  const [showLoading, setShowLoading] = React.useState<boolean>(true);
-  const [showError, setShowError] = React.useState({ show: false, detail: '' });
-  //
-  const [rowsPerPage, setRowsPerPage] = React.useState<number>(5);
-  const [f, setF] = React.useState<LpCategory[]>([]);
-  const [currentPage, setCurrentPage] = React.useState<number>(1);
-  const [recordCount, setRecordCount] = React.useState<number>(0);
-  const [listOption, setListOption] = React.useState({});
-  const [listSort, setListSort] = React.useState({});
-
-  //
-  const sortedLessonCategories = applySort(lessonCategoriesData, sortDir);
-  const filteredLessonCategories = applyFilters(sortedLessonCategories, { email, phone, status });
-
-  const reloadRows = async (): Promise<void> => {
-    try {
-      const models: ListResult<RecordModel> = await pb
-        .collection(COL_QUIZ_LP_CATEGORIES)
-        .getList(currentPage + 1, rowsPerPage, {});
-      const { items, totalItems } = models;
-      const tempLessonTypes: LpCategory[] = items.map((lt) => {
-        return { ...defaultLpCategory, ...lt };
-      });
-
-      setLessonCategoriesData(tempLessonTypes);
-      setRecordCount(totalItems);
-      setF(tempLessonTypes);
-      console.log({ currentPage, f });
-    } catch (error) {
-      //
-      setShowError({ show: true, detail: JSON.stringify(error) });
-    } finally {
-      setShowLoading(false);
-    }
-  };
-
-  React.useEffect(() => {
-    void reloadRows();
-  }, [currentPage, rowsPerPage, listOption]);
-
-  if (showLoading) return <FormLoading />;
-
-  if (showError.show)
-    return (
-      <ErrorDisplay
-        message={t('error.unable-to-process-request')}
-        code="500"
-        details={showError.detail}
-      />
-    );
-
-  return (
-    <Box
-      sx={{
-        maxWidth: 'var(--Content-maxWidth)',
-        m: 'var(--Content-margin)',
-        p: 'var(--Content-padding)',
-        width: 'var(--Content-width)',
-      }}
-    >
-      <Stack spacing={4}>
-        <Stack
-          direction={{ xs: 'column', sm: 'row' }}
-          spacing={3}
-          sx={{ alignItems: 'flex-start' }}
-        >
-          <Box sx={{ flex: '1 1 auto' }}>
-            <Typography variant="h4">{t('list.title')}</Typography>
-          </Box>
-          <Box sx={{ display: 'flex', justifyContent: 'flex-end' }}>
-            <LoadingButton
-              loading={isLoadingAddPage}
-              onClick={(): void => {
-                setIsLoadingAddPage(true);
-                router.push(paths.dashboard.lp_categories.create);
-              }}
-              startIcon={<PlusIcon />}
-              variant="contained"
-            >
-              {t('list.add')}
-            </LoadingButton>
-          </Box>
-        </Stack>
-        <LpCategoriesSelectionProvider lessonCategories={f}>
-          <Card>
-            <LpCategoriesFilters
-              filters={{ email, phone, status, name, visible, type }}
-              fullData={lessonCategoriesData}
-              sortDir={sortDir}
-            />
-            <Divider />
-            <Box sx={{ overflowX: 'auto' }}>
-              <LpCategoriesTable
-                reloadRows={reloadRows}
-                rows={f}
-              />
-            </Box>
-            <Divider />
-            <LpCategoriesPagination
-              count={recordCount}
-              page={currentPage}
-              rowsPerPage={rowsPerPage}
-              setPage={setCurrentPage}
-              setRowsPerPage={setRowsPerPage}
-            />
-          </Card>
-        </LpCategoriesSelectionProvider>
-      </Stack>
-    </Box>
-  );
-}
-
-// Sorting and filtering has to be done on the server.
-
-function applySort(row: LpCategory[], sortDir: 'asc' | 'desc' | undefined): LpCategory[] {
-  return row.sort((a, b) => {
-    if (sortDir === 'asc') {
-      return a.createdAt.getTime() - b.createdAt.getTime();
-    }
-
-    return b.createdAt.getTime() - a.createdAt.getTime();
-  });
-}
-
-function applyFilters(row: LpCategory[], { email, phone, status, name, visible }: Filters): LpCategory[] {
-  return row.filter((item) => {
-    if (email) {
-      if (!item.email?.toLowerCase().includes(email.toLowerCase())) {
-        return false;
-      }
-    }
-
-    if (phone) {
-      if (!item.phone?.toLowerCase().includes(phone.toLowerCase())) {
-        return false;
-      }
-    }
-
-    if (status) {
-      if (item.status !== status) {
-        return false;
-      }
-    }
-
-    if (name) {
-      if (!item.name?.toLowerCase().includes(name.toLowerCase())) {
-        return false;
-      }
-    }
-
-    if (visible) {
-      if (!item.visible?.toLowerCase().includes(visible.toLowerCase())) {
-        return false;
-      }
-    }
-
-    return true;
-  });
-}
-
-interface PageProps {
-  searchParams: {
-    email?: string;
-    phone?: string;
-    sortDir?: 'asc' | 'desc';
-    status?: string;
-    name?: string;
-    visible?: string;
-    type?: string;
-    //
-  };
-}
diff --git a/002_source/cms/src/app/dashboard/lp_questions/[cat_id]/BasicDetailCard.tsx b/002_source/cms/src/app/dashboard/lp_questions/[cat_id]/BasicDetailCard.tsx
deleted file mode 100644
index 176fc8c..0000000
--- a/002_source/cms/src/app/dashboard/lp_questions/[cat_id]/BasicDetailCard.tsx
+++ /dev/null
@@ -1,79 +0,0 @@
-'use client';
-
-import * as React from 'react';
-import Avatar from '@mui/material/Avatar';
-import Card from '@mui/material/Card';
-import CardHeader from '@mui/material/CardHeader';
-import Chip from '@mui/material/Chip';
-import Divider from '@mui/material/Divider';
-import IconButton from '@mui/material/IconButton';
-import { PencilSimple as PencilSimpleIcon } from '@phosphor-icons/react/dist/ssr/PencilSimple';
-import { User as UserIcon } from '@phosphor-icons/react/dist/ssr/User';
-import { useTranslation } from 'react-i18next';
-
-import { PropertyItem } from '@/components/core/property-item';
-import { PropertyList } from '@/components/core/property-list';
-import { LpCategory } from '@/components/dashboard/lp_categories/type';
-
-export default function BasicDetailCard({
-  lpModel: model,
-  handleEditClick,
-}: {
-  lpModel: LpCategory;
-  handleEditClick: () => void;
-}): React.JSX.Element {
-  const { t } = useTranslation();
-
-  return (
-    <Card>
-      <CardHeader
-        action={
-          <IconButton
-            onClick={() => {
-              handleEditClick();
-            }}
-          >
-            <PencilSimpleIcon />
-          </IconButton>
-        }
-        avatar={
-          <Avatar>
-            <UserIcon fontSize="var(--Icon-fontSize)" />
-          </Avatar>
-        }
-        title={t('list.basic-details')}
-      />
-      <PropertyList
-        divider={<Divider />}
-        orientation="vertical"
-        sx={{ '--PropertyItem-padding': '12px 24px' }}
-      >
-        {(
-          [
-            {
-              key: 'Customer ID',
-              value: (
-                <Chip
-                  label={model.id}
-                  size="small"
-                  variant="soft"
-                />
-              ),
-            },
-            { key: 'Name', value: model.cat_name },
-            { key: 'Remarks', value: model.remarks },
-            { key: 'Description', value: model.description },
-          ] satisfies { key: string; value: React.ReactNode }[]
-        ).map(
-          (item): React.JSX.Element => (
-            <PropertyItem
-              key={item.key}
-              name={item.key}
-              value={item.value}
-            />
-          )
-        )}
-      </PropertyList>
-    </Card>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_questions/[cat_id]/TitleCard.tsx b/002_source/cms/src/app/dashboard/lp_questions/[cat_id]/TitleCard.tsx
deleted file mode 100644
index f1ad1bc..0000000
--- a/002_source/cms/src/app/dashboard/lp_questions/[cat_id]/TitleCard.tsx
+++ /dev/null
@@ -1,73 +0,0 @@
-'use client';
-
-import * as React from 'react';
-import { Button } from '@mui/material';
-import Avatar from '@mui/material/Avatar';
-import Chip from '@mui/material/Chip';
-import Stack from '@mui/material/Stack';
-import Typography from '@mui/material/Typography';
-import { CaretDown as CaretDownIcon } from '@phosphor-icons/react/dist/ssr/CaretDown';
-import { CheckCircle as CheckCircleIcon } from '@phosphor-icons/react/dist/ssr/CheckCircle';
-import { useTranslation } from 'react-i18next';
-
-import { LpCategory } from '@/components/dashboard/lp_categories/type';
-
-function getImageUrlFrRecord(record: LpCategory): string {
-  return `http://127.0.0.1:8090/api/files/${record.collectionId}/${record.id}/${record.cat_image}`;
-}
-
-export default function SampleTitleCard({ lpModel }: { lpModel: LpCategory }): React.JSX.Element {
-  const { t } = useTranslation();
-
-  return (
-    <>
-      <Stack
-        direction="row"
-        spacing={2}
-        sx={{ alignItems: 'center', flex: '1 1 auto' }}
-      >
-        <Avatar
-          variant="rounded"
-          src={getImageUrlFrRecord(lpModel)}
-          sx={{ '--Avatar-size': '64px' }}
-        >
-          {t('empty')}
-        </Avatar>
-        <div>
-          <Stack
-            direction="row"
-            spacing={2}
-            sx={{ alignItems: 'center', flexWrap: 'wrap' }}
-          >
-            <Typography variant="h4">{lpModel.cat_name}</Typography>
-            <Chip
-              icon={
-                <CheckCircleIcon
-                  color="var(--mui-palette-success-main)"
-                  weight="fill"
-                />
-              }
-              label={lpModel.visible}
-              size="small"
-              variant="outlined"
-            />
-          </Stack>
-          <Typography
-            color="text.secondary"
-            variant="body1"
-          >
-            {lpModel.slug}
-          </Typography>
-        </div>
-      </Stack>
-      <div>
-        <Button
-          endIcon={<CaretDownIcon />}
-          variant="contained"
-        >
-          {t('list.action')}
-        </Button>
-      </div>
-    </>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_questions/[cat_id]/page.tsx b/002_source/cms/src/app/dashboard/lp_questions/[cat_id]/page.tsx
deleted file mode 100644
index 366c535..0000000
--- a/002_source/cms/src/app/dashboard/lp_questions/[cat_id]/page.tsx
+++ /dev/null
@@ -1,138 +0,0 @@
-'use client';
-
-import * as React from 'react';
-import RouterLink from 'next/link';
-import { useParams, useRouter } from 'next/navigation';
-import SampleAddressCard from '@/app/dashboard/Sample/AddressCard';
-import { SampleNotifications } from '@/app/dashboard/Sample/Notifications';
-import SamplePaymentCard from '@/app/dashboard/Sample/SamplePaymentCard';
-import SampleSecurityCard from '@/app/dashboard/Sample/SampleSecurityCard';
-import { COL_QUIZ_LP_CATEGORIES } from '@/constants';
-import Box from '@mui/material/Box';
-import Link from '@mui/material/Link';
-import Stack from '@mui/material/Stack';
-import Grid from '@mui/material/Unstable_Grid2';
-import { ArrowLeft as ArrowLeftIcon } from '@phosphor-icons/react/dist/ssr/ArrowLeft';
-import type { RecordModel } from 'pocketbase';
-import { useTranslation } from 'react-i18next';
-
-import { paths } from '@/paths';
-import { logger } from '@/lib/default-logger';
-import { pb } from '@/lib/pb';
-import { toast } from '@/components/core/toaster';
-import ErrorDisplay from '@/components/dashboard/error';
-import { defaultLpCategory } from '@/components/dashboard/lp_categories/_constants.ts';
-import { Notifications } from '@/components/dashboard/lp_categories/notifications';
-import type { LpCategory } from '@/components/dashboard/lp_categories/type';
-import FormLoading from '@/components/loading';
-
-import BasicDetailCard from './BasicDetailCard';
-import TitleCard from './TitleCard';
-
-export default function Page(): React.JSX.Element {
-  const { t } = useTranslation();
-  const router = useRouter();
-  //
-  const { cat_id: catId } = useParams<{ cat_id: string }>();
-  //
-  const [showLoading, setShowLoading] = React.useState<boolean>(true);
-  const [showError, setShowError] = React.useState({ show: false, detail: '' });
-
-  //
-  const [showLessonCategory, setShowLessonCategory] = React.useState<LpCategory>(defaultLpCategory);
-
-  function handleEditClick() {
-    router.push(paths.dashboard.lp_categories.edit(showLessonCategory.id));
-  }
-
-  React.useEffect(() => {
-    if (catId) {
-      pb.collection(COL_QUIZ_LP_CATEGORIES)
-        .getOne(catId)
-        .then((model: RecordModel) => {
-          setShowLessonCategory({ ...defaultLpCategory, ...model });
-        })
-        .catch((err) => {
-          logger.error(err);
-          toast(t('list.error'));
-
-          setShowError({ show: true, detail: JSON.stringify(err) });
-        })
-        .finally(() => {
-          setShowLoading(false);
-        });
-    }
-  }, [catId]);
-
-  if (showLoading) return <FormLoading />;
-  if (showError.show)
-    return (
-      <ErrorDisplay
-        message={t('error.unable-to-process-request')}
-        code="500"
-        details={showError.detail}
-      />
-    );
-
-  return (
-    <Box
-      sx={{
-        maxWidth: 'var(--Content-maxWidth)',
-        m: 'var(--Content-margin)',
-        p: 'var(--Content-padding)',
-        width: 'var(--Content-width)',
-      }}
-    >
-      <Stack spacing={4}>
-        <Stack spacing={3}>
-          <div>
-            <Link
-              color="text.primary"
-              component={RouterLink}
-              href={paths.dashboard.lesson_categories.list}
-              sx={{ alignItems: 'center', display: 'inline-flex', gap: 1 }}
-              variant="subtitle2"
-            >
-              <ArrowLeftIcon fontSize="var(--icon-fontSize-md)" />
-              {t('list.title')}
-            </Link>
-          </div>
-          <Stack
-            direction={{ xs: 'column', sm: 'row' }}
-            spacing={3}
-            sx={{ alignItems: 'flex-start' }}
-          >
-            <TitleCard lpModel={showLessonCategory} />
-          </Stack>
-        </Stack>
-        <Grid
-          container
-          spacing={4}
-        >
-          <Grid
-            lg={4}
-            xs={12}
-          >
-            <Stack spacing={4}>
-              <BasicDetailCard
-                lpModel={showLessonCategory}
-                handleEditClick={handleEditClick}
-              />
-              <SampleSecurityCard />
-            </Stack>
-          </Grid>
-          <Grid
-            lg={8}
-            xs={12}
-          >
-            <Stack spacing={4}>
-              <SamplePaymentCard />
-              <SampleAddressCard />
-              <Notifications notifications={SampleNotifications} />
-            </Stack>
-          </Grid>
-        </Grid>
-      </Stack>
-    </Box>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_questions/create/page.tsx b/002_source/cms/src/app/dashboard/lp_questions/create/page.tsx
deleted file mode 100644
index a3e7882..0000000
--- a/002_source/cms/src/app/dashboard/lp_questions/create/page.tsx
+++ /dev/null
@@ -1,53 +0,0 @@
-'use client';
-
-// RULES:
-// T.B.A.
-//
-import * as React from 'react';
-import RouterLink from 'next/link';
-import Box from '@mui/material/Box';
-import Link from '@mui/material/Link';
-import Stack from '@mui/material/Stack';
-import Typography from '@mui/material/Typography';
-import { ArrowLeft as ArrowLeftIcon } from '@phosphor-icons/react/dist/ssr/ArrowLeft';
-import { useTranslation } from 'react-i18next';
-
-import { paths } from '@/paths';
-import { LpCategoryCreateForm } from '@/components/dashboard/lp_categories/lp-category-create-form';
-
-export default function Page(): React.JSX.Element {
-  // RULES: follow the name of page directory
-  const { t } = useTranslation(['lp_categories']);
-
-  return (
-    <Box
-      sx={{
-        maxWidth: 'var(--Content-maxWidth)',
-        m: 'var(--Content-margin)',
-        p: 'var(--Content-padding)',
-        width: 'var(--Content-width)',
-      }}
-    >
-      <Stack spacing={4}>
-        <Stack spacing={3}>
-          <div>
-            <Link
-              color="text.primary"
-              component={RouterLink}
-              href={paths.dashboard.lesson_categories.list}
-              sx={{ alignItems: 'center', display: 'inline-flex', gap: 1 }}
-              variant="subtitle2"
-            >
-              <ArrowLeftIcon fontSize="var(--icon-fontSize-md)" />
-              {t('title')}
-            </Link>
-          </div>
-          <div>
-            <Typography variant="h4">{t('create.title')}</Typography>
-          </div>
-        </Stack>
-        <LpCategoryCreateForm />
-      </Stack>
-    </Box>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_questions/edit/[cat_id]/_PROMPT.md b/002_source/cms/src/app/dashboard/lp_questions/edit/[cat_id]/_PROMPT.md
deleted file mode 100644
index abf4465..0000000
--- a/002_source/cms/src/app/dashboard/lp_questions/edit/[cat_id]/_PROMPT.md
+++ /dev/null
@@ -1,11 +0,0 @@
-# task
-
-## instruction
-
-with reference to `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/app/_helloworld/page.tsx`
-
-with reference to `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/app/dashboard/lesson_types/edit/[typeId]/page.tsx`
-
-please modify `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/app/dashboard/lesson_categories/edit/page.tsx`
-
-please draft a tsx for showing error to user thanks,
diff --git a/002_source/cms/src/app/dashboard/lp_questions/edit/[cat_id]/page.tsx b/002_source/cms/src/app/dashboard/lp_questions/edit/[cat_id]/page.tsx
deleted file mode 100644
index 9f7f258..0000000
--- a/002_source/cms/src/app/dashboard/lp_questions/edit/[cat_id]/page.tsx
+++ /dev/null
@@ -1,53 +0,0 @@
-'use client';
-
-import * as React from 'react';
-import RouterLink from 'next/link';
-import Box from '@mui/material/Box';
-import Link from '@mui/material/Link';
-import Stack from '@mui/material/Stack';
-import Typography from '@mui/material/Typography';
-import { ArrowLeft as ArrowLeftIcon } from '@phosphor-icons/react/dist/ssr/ArrowLeft';
-import { useTranslation } from 'react-i18next';
-
-import { paths } from '@/paths';
-import { LpCategoryEditForm } from '@/components/dashboard/lp_categories/lp-category-edit-form';
-
-export default function Page(): React.JSX.Element {
-  const { t } = useTranslation(['lp_categories']);
-
-  React.useEffect(() => {
-    // console.log('helloworld');
-  }, []);
-
-  return (
-    <Box
-      sx={{
-        maxWidth: 'var(--Content-maxWidth)',
-        m: 'var(--Content-margin)',
-        p: 'var(--Content-padding)',
-        width: 'var(--Content-width)',
-      }}
-    >
-      <Stack spacing={4}>
-        <Stack spacing={3}>
-          <div>
-            <Link
-              color="text.primary"
-              component={RouterLink}
-              href={paths.dashboard.lp_categories.list}
-              sx={{ alignItems: 'center', display: 'inline-flex', gap: 1 }}
-              variant="subtitle2"
-            >
-              <ArrowLeftIcon fontSize="var(--icon-fontSize-md)" />
-              {t('edit.title')}
-            </Link>
-          </div>
-          <div>
-            <Typography variant="h4">{t('edit.title')}</Typography>
-          </div>
-        </Stack>
-        <LpCategoryEditForm />
-      </Stack>
-    </Box>
-  );
-}
diff --git a/002_source/cms/src/app/dashboard/lp_questions/lp-categories-sample-data.tsx b/002_source/cms/src/app/dashboard/lp_questions/lp-categories-sample-data.tsx
deleted file mode 100644
index 0c1aa79..0000000
--- a/002_source/cms/src/app/dashboard/lp_questions/lp-categories-sample-data.tsx
+++ /dev/null
@@ -1,90 +0,0 @@
-import { dayjs } from '@/lib/dayjs';
-import { LessonCategory } from '@/components/dashboard/lesson_category/type';
-
-export const LpCategoriesSampleData = [
-  {
-    id: 'USR-005',
-    name: 'Fran Perez',
-    avatar: '/assets/avatar-5.png',
-    email: 'fran.perez@domain.com',
-    phone: '(815) 704-0045',
-    quota: 50,
-    status: 'active',
-    createdAt: dayjs().subtract(1, 'hour').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-  {
-    id: 'USR-004',
-    name: 'Penjani Inyene',
-    avatar: '/assets/avatar-4.png',
-    email: 'penjani.inyene@domain.com',
-    phone: '(803) 937-8925',
-    quota: 100,
-    status: 'active',
-    createdAt: dayjs().subtract(3, 'hour').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-  {
-    id: 'USR-003',
-    name: 'Carson Darrin',
-    avatar: '/assets/avatar-3.png',
-    email: 'carson.darrin@domain.com',
-    phone: '(715) 278-5041',
-    quota: 10,
-    status: 'blocked',
-    createdAt: dayjs().subtract(1, 'hour').subtract(1, 'day').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-  {
-    id: 'USR-002',
-    name: 'Siegbert Gottfried',
-    avatar: '/assets/avatar-2.png',
-    email: 'siegbert.gottfried@domain.com',
-    phone: '(603) 766-0431',
-    quota: 0,
-    status: 'pending',
-    createdAt: dayjs().subtract(7, 'hour').subtract(1, 'day').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-  {
-    id: 'USR-001',
-    name: 'Miron Vitold',
-    avatar: '/assets/avatar-1.png',
-    email: 'miron.vitold@domain.com',
-    phone: '(425) 434-5535',
-    quota: 50,
-    status: 'active',
-    createdAt: dayjs().subtract(2, 'hour').subtract(2, 'day').toDate(),
-    collectionId: '0000000001',
-    cat_name: '',
-    pos: 99,
-    visible: 'visible',
-    lesson_id: 'lid_00001',
-    description: '',
-    remarks: '',
-  },
-] satisfies LessonCategory[];
diff --git a/002_source/cms/src/app/dashboard/lp_questions/page.tsx b/002_source/cms/src/app/dashboard/lp_questions/page.tsx
deleted file mode 100644
index 24a908c..0000000
--- a/002_source/cms/src/app/dashboard/lp_questions/page.tsx
+++ /dev/null
@@ -1,213 +0,0 @@
-'use client';
-
-// RULES:
-// contains list page for lp_categories (QuizLPCategories)
-// contain definition to collection only
-//
-import * as React from 'react';
-import { useRouter } from 'next/navigation';
-import { COL_QUIZ_LP_CATEGORIES } from '@/constants';
-import { LoadingButton } from '@mui/lab';
-import Box from '@mui/material/Box';
-import Card from '@mui/material/Card';
-import Divider from '@mui/material/Divider';
-import Stack from '@mui/material/Stack';
-import Typography from '@mui/material/Typography';
-import { Plus as PlusIcon } from '@phosphor-icons/react/dist/ssr/Plus';
-import type { ListResult, RecordModel } from 'pocketbase';
-import { useTranslation } from 'react-i18next';
-
-import { paths } from '@/paths';
-import { logger } from '@/lib/default-logger';
-import { pb } from '@/lib/pb';
-import { toast } from '@/components/core/toaster';
-import ErrorDisplay from '@/components/dashboard/error';
-import { defaultLpCategory } from '@/components/dashboard/lp_categories/_constants';
-import { LpCategoriesFilters } from '@/components/dashboard/lp_categories/lp-categories-filters';
-import type { Filters } from '@/components/dashboard/lp_categories/lp-categories-filters';
-import { LpCategoriesPagination } from '@/components/dashboard/lp_categories/lp-categories-pagination';
-import { LpCategoriesSelectionProvider } from '@/components/dashboard/lp_categories/lp-categories-selection-context';
-import { LpCategoriesTable } from '@/components/dashboard/lp_categories/lp-categories-table';
-import type { LpCategory } from '@/components/dashboard/lp_categories/type';
-import FormLoading from '@/components/loading';
-
-export default function Page({ searchParams }: PageProps): React.JSX.Element {
-  const { t } = useTranslation(['lp_categories']);
-  const { email, phone, sortDir, status, name, visible, type } = searchParams;
-  const router = useRouter();
-  const [lessonCategoriesData, setLessonCategoriesData] = React.useState<LpCategory[]>([]);
-  //
-
-  const [isLoadingAddPage, setIsLoadingAddPage] = React.useState<boolean>(false);
-  const [showLoading, setShowLoading] = React.useState<boolean>(true);
-  const [showError, setShowError] = React.useState({ show: false, detail: '' });
-  //
-  const [rowsPerPage, setRowsPerPage] = React.useState<number>(5);
-  const [f, setF] = React.useState<LpCategory[]>([]);
-  const [currentPage, setCurrentPage] = React.useState<number>(1);
-  const [recordCount, setRecordCount] = React.useState<number>(0);
-  const [listOption, setListOption] = React.useState({});
-  const [listSort, setListSort] = React.useState({});
-
-  //
-  const sortedLessonCategories = applySort(lessonCategoriesData, sortDir);
-  const filteredLessonCategories = applyFilters(sortedLessonCategories, { email, phone, status });
-
-  const reloadRows = async (): Promise<void> => {
-    try {
-      const models: ListResult<RecordModel> = await pb
-        .collection(COL_QUIZ_LP_CATEGORIES)
-        .getList(currentPage + 1, rowsPerPage, {});
-      const { items, totalItems } = models;
-      const tempLessonTypes: LpCategory[] = items.map((lt) => {
-        return { ...defaultLpCategory, ...lt };
-      });
-
-      setLessonCategoriesData(tempLessonTypes);
-      setRecordCount(totalItems);
-      setF(tempLessonTypes);
-      console.log({ currentPage, f });
-    } catch (error) {
-      //
-      setShowError({ show: true, detail: JSON.stringify(error) });
-    } finally {
-      setShowLoading(false);
-    }
-  };
-
-  React.useEffect(() => {
-    void reloadRows();
-  }, [currentPage, rowsPerPage, listOption]);
-
-  if (showLoading) return <FormLoading />;
-
-  if (showError.show)
-    return (
-      <ErrorDisplay
-        message={t('error.unable-to-process-request')}
-        code="500"
-        details={showError.detail}
-      />
-    );
-
-  return (
-    <Box
-      sx={{
-        maxWidth: 'var(--Content-maxWidth)',
-        m: 'var(--Content-margin)',
-        p: 'var(--Content-padding)',
-        width: 'var(--Content-width)',
-      }}
-    >
-      <Stack spacing={4}>
-        <Stack
-          direction={{ xs: 'column', sm: 'row' }}
-          spacing={3}
-          sx={{ alignItems: 'flex-start' }}
-        >
-          <Box sx={{ flex: '1 1 auto' }}>
-            <Typography variant="h4">{t('list.title')}</Typography>
-          </Box>
-          <Box sx={{ display: 'flex', justifyContent: 'flex-end' }}>
-            <LoadingButton
-              loading={isLoadingAddPage}
-              onClick={(): void => {
-                setIsLoadingAddPage(true);
-                router.push(paths.dashboard.lp_categories.create);
-              }}
-              startIcon={<PlusIcon />}
-              variant="contained"
-            >
-              {t('list.add')}
-            </LoadingButton>
-          </Box>
-        </Stack>
-        <LpCategoriesSelectionProvider lessonCategories={f}>
-          <Card>
-            <LpCategoriesFilters
-              filters={{ email, phone, status, name, visible, type }}
-              fullData={lessonCategoriesData}
-              sortDir={sortDir}
-            />
-            <Divider />
-            <Box sx={{ overflowX: 'auto' }}>
-              <LpCategoriesTable
-                reloadRows={reloadRows}
-                rows={f}
-              />
-            </Box>
-            <Divider />
-            <LpCategoriesPagination
-              count={recordCount}
-              page={currentPage}
-              rowsPerPage={rowsPerPage}
-              setPage={setCurrentPage}
-              setRowsPerPage={setRowsPerPage}
-            />
-          </Card>
-        </LpCategoriesSelectionProvider>
-      </Stack>
-    </Box>
-  );
-}
-
-// Sorting and filtering has to be done on the server.
-
-function applySort(row: LpCategory[], sortDir: 'asc' | 'desc' | undefined): LpCategory[] {
-  return row.sort((a, b) => {
-    if (sortDir === 'asc') {
-      return a.createdAt.getTime() - b.createdAt.getTime();
-    }
-
-    return b.createdAt.getTime() - a.createdAt.getTime();
-  });
-}
-
-function applyFilters(row: LpCategory[], { email, phone, status, name, visible }: Filters): LpCategory[] {
-  return row.filter((item) => {
-    if (email) {
-      if (!item.email?.toLowerCase().includes(email.toLowerCase())) {
-        return false;
-      }
-    }
-
-    if (phone) {
-      if (!item.phone?.toLowerCase().includes(phone.toLowerCase())) {
-        return false;
-      }
-    }
-
-    if (status) {
-      if (item.status !== status) {
-        return false;
-      }
-    }
-
-    if (name) {
-      if (!item.name?.toLowerCase().includes(name.toLowerCase())) {
-        return false;
-      }
-    }
-
-    if (visible) {
-      if (!item.visible?.toLowerCase().includes(visible.toLowerCase())) {
-        return false;
-      }
-    }
-
-    return true;
-  });
-}
-
-interface PageProps {
-  searchParams: {
-    email?: string;
-    phone?: string;
-    sortDir?: 'asc' | 'desc';
-    status?: string;
-    name?: string;
-    visible?: string;
-    type?: string;
-    //
-  };
-}