add contents

apps/app/src/components/Admin/page403.tsx

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+import React from 'react';
+
+import DefaultErrorPage from 'next/error';
+import { useTranslation } from 'react-i18next';
+
+
+export const Page403 = (): JSX.Element => {
+  const { t } = useTranslation('commons');
+
+  const errorMessage = t('forbidden_page.do_not_have_admin_permission', { ns: 'commons' });
+
+  return (
+    <>
+      <DefaultErrorPage statusCode={403} title={errorMessage} />
+    </>
+  );
+};