Fatal error: Uncaught Error: Class "OCP\AppFramework\Db\Entity" not found in /var/www/html/nextcloud/apps/twofactor_backupcodes/lib/Db/BackupCode.php:21 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/twofactor_backupcodes/lib/Db/BackupCode.php on line 21