Fatal error: Uncaught Error: Class "OCP\BackgroundJob\Job" not found in /var/www/html/nextcloud/apps/files_reminders/lib/BackgroundJob/ScheduledNotifications.php:19 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/files_reminders/lib/BackgroundJob/ScheduledNotifications.php on line 19