Fatal error: Uncaught Error: Class "OCP\Migration\SimpleMigrationStep" not found in /home/tzuovhm/tzuovhm/apps_/files_trashbin/lib/Migration/Version1010Date20200630192639.php:17 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/files_trashbin/lib/Migration/Version1010Date20200630192639.php on line 17