Removing mods while in game does not work - you have to get out of the game period, remove the mods delete all your cache files and that save you were using - reboot your pc to clean all that out, then go back to the game and start a brand new one to remove at least any of Twallans mods properly - especial MC, sp, Error trap, registry mod, and Overwatch. But that is where people make a mistake they take the mod out but do not clean the cache and the cache still keeps the info because there is no legit uninstall - it is just a delete or move out the mods folder - which you really should be doing - but even twallan will tell his mods are all matched to every update - which installing a new ep means an update - so they will often not play properly with an update and he always says to remove your mod folder and clean your caches before you even install the game as the mods can affect the actual install even. But deleting a mod is not the way you tell if it is that creating the problem if the caches were not removed and all was not removed BEFORE the new ep was installed.