Fatal error: Uncaught Error: Class "OC\DB\QueryBuilder\QueryBuilder" not found in /home/tzuovhm/tzuovhm/apps_/related_resources/lib/Tools/Db/ExtendedQueryBuilder.php:30 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/related_resources/lib/Tools/Db/ExtendedQueryBuilder.php on line 30