Fatal error: Uncaught Error: Class "Symfony\Component\Console\Command\Command" not found in /home/tzuovhm/tzuovhm/nextcloud/apps/updatenotification/lib/Command/Check.php:18 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/nextcloud/apps/updatenotification/lib/Command/Check.php on line 18