Fatal error: Uncaught Error: Interface "OCP\Notification\INotifier" not found in /home/tzuovhm/tzuovhm/apps_/notifications/lib/Notifier/AdminNotifications.php:23 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/notifications/lib/Notifier/AdminNotifications.php on line 23