Fatal error: Uncaught Error: Class "OCP\Migration\SimpleMigrationStep" not found in /home/tzuovhm/tzuovhm/apps_/user_status/lib/Migration/Version0001Date20200602134824.php:21 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/user_status/lib/Migration/Version0001Date20200602134824.php on line 21