Arent11

It's already sufficient to have another profile in which mods are switched off. There is no need for a fresh install.

Does any steam game user see this error? Which version do all of you use? Mine is 4.1.85.5707.

This "testing area" also happens with manual installation and with several mods, it does not seem to be specific to a certain one. As long as you choose a profile where the mods are disabled in the lsx, everything starts fine. I use gog and the latest version 5707. Maybe the OP can say whether he uses steam or gog. And which version of the game. Maybe a newer update of the game introduced that error.