Fatal error: Uncaught Error: Interface "OCP\Federation\ICloudFederationNotification" not found in /home/tzuovhm/tzuovhm/lib_/private/Federation/CloudFederationNotification.php:17 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/lib_/private/Federation/CloudFederationNotification.php on line 17