Fatal error: Uncaught Error: Class "OCP\AppFramework\Controller" not found in /home/tzuovhm/tzuovhm/apps_/app_api/lib/Controller/ExAppsPageController.php:36 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/app_api/lib/Controller/ExAppsPageController.php on line 36