Fatal error: Uncaught Error: Interface "OCP\Federation\ICloudFederationProvider" not found in /home/tzuovhm/tzuovhm/apps_/spreed/lib/Federation/CloudFederationProviderTalk.php:62 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/spreed/lib/Federation/CloudFederationProviderTalk.php on line 62