There was a bug in the latest version of WatchMe (v2.4.6) that would cause issues for people first running WatchMe when it creates a brand new WatchMeConfig.xml file. This issue has been fixed in this latest release.
If you ran into this problem, you will need to delete your existing WatchMeConfig.xml file so that the proper one can be created. If you are having trouble finding this file, check out this help page for more information.
I apologize for any inconvenience this may have caused.