Fatal error: Uncaught Error: Class 'OCP\Notification\Events\RegisterNotifierEvent' not found in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/private/Notification/Events/RegisterNotifierEventImpl.php:39 Stack trace: #0 {main} thrown in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/private/Notification/Events/RegisterNotifierEventImpl.php on line 39