Fatal error: Uncaught Error: Class "OCP\Migration\SimpleMigrationStep" not found in /var/www/html/nextcloud/apps/files_reminders/lib/Migration/Version10000Date20230725162149.php:19 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/files_reminders/lib/Migration/Version10000Date20230725162149.php on line 19