Plutonium

Seeing this now as I've decided to try it again, still getting the exact same error and the suggested command which seems to be the only solution just doesn't do anything, still. Must be some program interfering, not bothered to find out which one.

As I launch the game, it enters full screen and stops loading and stays on a black screen. When looking at the bootstrapper it shows "Unknown command: "resetCustomGametype"". I fixed this last time I played by un-overclocking my gpu, except this time it is already un-overclocked and the error is back. My drivers are up to date and am unsure how to fix the issue. Help?