NextCloud crashed

I installed and implemented the NC but When I activate the search option ‘Fulltextsearch OCR’
Whole NC went down.

Tried my best to bring it back but not going thru.
Please help. I need to complete this demo very shortly

root@AbdulSalam:~# sudo -u www-data php /var/www/next_cloud/occ fulltextsearch:check
Full text search 20.0.0

  • Search Platform:
    Elasticsearch 20.0.0 (Selected)
    {
    “elastic_host”: [
    http://localhost:9200
    ],
    “elastic_index”: “Linux”,
    “fields_limit”: “10000”,
    “es_ver_below66”: “1”,
    “analyzer_tokenizer”: “standard”
    }

PHP Fatal error: Declaration of OCA\Bookmarks_FullTextSearch\Provider\BookmarksProvider::generateIndexableDocuments(string $userId): array must be compatible with OCP\FullTextSearch\IFullTextSearchProvider::generateIndexableDocuments(string $userId, string $chunk): array in /var/www/next_cloud/apps/bookmarks_fulltextsearch/lib/Provider/BookmarksProvider.php on line 272
root@AbdulSalam:~#


root@AbdulSalam:~# sudo -u www-data php /var/www/next_cloud/occ fulltextsearch:test

.Testing your current setup:
Creating mocked content provider. PHP Fatal error: Declaration of OCA\Bookmarks_FullTextSearch\Provider\BookmarksProvider::generateIndexableDocuments(string $userId): array must be compatible with OCP\FullTextSearch\IFullTextSearchProvider::generateIndexableDocuments(string $userId, string $chunk): array in /var/www/next_cloud/apps/bookmarks_fulltextsearch/lib/Provider/BookmarksProvider.php on line 272
root@AbdulSalam:~#