Fatal error: Uncaught Error: Class "OCP\Notification\Events\RegisterNotifierEvent" not found in /users/ms-it/www/oc/lib/private/Notification/Events/RegisterNotifierEventImpl.php:40 Stack trace: #0 {main} thrown in /users/ms-it/www/oc/lib/private/Notification/Events/RegisterNotifierEventImpl.php on line 40