Fatal error: Uncaught Error: Class "OCP\BackgroundJob\TimedJob" not found in /home/tzuovhm/tzuovhm/apps/notifications/lib/BackgroundJob/SendNotificationMails.php:15 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps/notifications/lib/BackgroundJob/SendNotificationMails.php on line 15