freezes on exit [Steam Version]

have been using pirated gog version, now its steam license... and im not exactly pleased. when i try to quit on desktop, my game freezes, and i cant kill the process with task manager nor with alt f4.

mod list

NVAC

NFTF

YUP

MTUI(i know its old)

JIP LN

4GB PATCH

as if right now, im quitting by alt tabbing, before closing the game. i just wanna know if it is fixable.