Fatal error: Uncaught Error: Class "OC\DB\QueryBuilder\QueryBuilder" not found in /home/tremblinlu/MyNextCloud/nextcloud/lib/private/Files/Cache/CacheQueryBuilder.php:38 Stack trace: #0 {main} thrown in /home/tremblinlu/MyNextCloud/nextcloud/lib/private/Files/Cache/CacheQueryBuilder.php on line 38