Fatal error: Uncaught Error: Class "OCP\Migration\SimpleMigrationStep" not found in /home/tzuovhm/tzuovhm/apps_/twofactor_totp/lib/Migration/Version010501Date20181018124436.php:34 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/twofactor_totp/lib/Migration/Version010501Date20181018124436.php on line 34