Fatal error: Uncaught Error: Class "OC\Core\Controller\OCSController" not found in /home/tzuovhm/tzuovhm/nextcloud/core/Controller/WhatsNewController.php:23 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/nextcloud/core/Controller/WhatsNewController.php on line 23