Fatal error: Uncaught Error: Class "OC\AppFramework\Bootstrap\ServiceRegistration" not found in /home/tzuovhm/tzuovhm/lib/private/AppFramework/Bootstrap/PreviewProviderRegistration.php:16 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/lib/private/AppFramework/Bootstrap/PreviewProviderRegistration.php on line 16