Lync Server 2010, Response Group Service was not able to start the workflow instance. Workflow instance with the GUID '%1', ...

Lync Server 2010, Response Group Service was not able to start the workflow instance.

Workflow instance with the GUID '%1', handling request from '%2' was not able to start because of the following exception:
Exception: %3
Inner Exception: %4

Cause: Misconfigured workflow.
Resolution:
Use the Lync Server 2010, Response Group Service Management Console to check the workflow configuration.