Fatal error: Uncaught Error: Class "OC\App\AppStore\Fetcher\Fetcher" not found in /home/tremblinlu/MyNextCloud/nextcloud/lib/private/App/AppStore/Fetcher/CategoryFetcher.php:36 Stack trace: #0 {main} thrown in /home/tremblinlu/MyNextCloud/nextcloud/lib/private/App/AppStore/Fetcher/CategoryFetcher.php on line 36