Fatal error: Uncaught Error: Class "OCP\BackgroundJob\Job" not found in /var/www/html/nextcloud/apps/lookup_server_connector/lib/BackgroundJobs/RetryJob.php:21 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/lookup_server_connector/lib/BackgroundJobs/RetryJob.php on line 21