Hmm... this error is because the app can't write the real failure message to the Documents\CrewChiefV4\ folder - presumably because that folder doesn't exist (I forgot to check it exists before attempting to write it it). I'll fix that specific issue for the next release. In the mean time, if you create a folder in Documents called CrewChiefV4 and run the app again, it should write a new file in there called startupError.txt, which should contain some details