Getting the following error in Tosca: Unable to proceed!Another workspace, which is a copy of this one, commited changes earlier.You will not be able to access the common repository through this workspace. Any ideas on resolving this  error?

I'm trying to use Tosca Commander to test my web app. When I try to run the test case in the ScratchBook, I'm getting the following error: Could not register new connection at TOSCAAutomationService.Reason: Connection Timeout of 15000 ms has been exceeded! Does anyone know how to fix this?