Fatal error: Uncaught Error: Interface "OCP\Talk\IConversation" not found in /home/tzuovhm/tzuovhm/apps_/spreed/lib/OCP/Conversation.php:16 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/spreed/lib/OCP/Conversation.php on line 16