Donīt give up yet Animal letīs wait until ZW joins the forum he may know whatīs going on and give you the solution but already I can tell you that the error messaqge duplicate means you have that file somewhere still and itīs creating a duplication, a conflict with your new install.Did you clean the game cache?
Look I have all ZWīs mods and there are over 30 members now with ZWīs mod sand none of us has reported that problem.So it lies in your folders.
Letīs wait and see what ZW says!
Hang on!