Fatal error: Uncaught Error: Class "OCP\AppFramework\App" not found in /users/ms-it/www/oc/apps-external/richdocuments/lib/AppInfo/Application.php:24 Stack trace: #0 {main} thrown in /users/ms-it/www/oc/apps-external/richdocuments/lib/AppInfo/Application.php on line 24