Fatal error: Uncaught Error: Class "OCP\Migration\SimpleMigrationStep" not found in /var/www/html/nextcloud/apps/updatenotification/lib/Migration/Version011901Date20240305120000.php:22 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/updatenotification/lib/Migration/Version011901Date20240305120000.php on line 22