Probably need to do a clean install, other mods (such as DarthMod) may overwrite original files and cause issues.
Suggest you remove the NTW3 mod by using the uninstall file apps in the Napoleon Total War folder; Then manually remove any remaining NTW3 folders or files
Go to your Steam Library and select Properties/Local Files/Verify Integrity of Game files and play the ntw vanilla game to insure it's running properly.
Clean up your HD and now your ready to do a clean install of the NTW3 v92 mod. Follow these instructions carefully Your off to the battlefield