Hi,
I think you are referring to MWAgent not Monilog right?
Have you checked the Application Eventlog for error's from MWAgent?
Next step would be to enable Debuglogging to see more details.
Also note that the latest stable version of MWagent 1.x is Version 1.3 (Can be downloaded here:
http://www.mwagent.com/en/Download/). For changes of this version, see this link:
http://www.mwagent.com/Common/en/Version/mwagnet1.3.php