Penumbra Requiem freezes at Power station

[LepiKakec]

I've played Overture and Black Plague without any problems and even Requiem was running completely fine for the first couple of chapters, but then when I get to the Power station at level 6 (after fixing the satellite in the previous area), the game almost completely freezes and I am unable to continue at all... There was already a post written about this issue but it doesn't have any solution for it and was just closed in spite of that:
https://www.frictionalgames.com/forum/th...23256.html
Can someone please help?