Fatal error: Uncaught Error: Interface "OCP\Capabilities\ICapability" not found in /home/tzuovhm/tzuovhm/apps_/cloud_federation_api/lib/Capabilities.php:17 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/cloud_federation_api/lib/Capabilities.php on line 17