Fatal error: Uncaught Error: Interface "OCP\WorkflowEngine\IManager" not found in /home/.sites/740/site1364/web/cloud/-/apps/workflowengine/lib/Manager.php:35
Stack trace:
#0 {main}
  thrown in /home/.sites/740/site1364/web/cloud/-/apps/workflowengine/lib/Manager.php on line 35