Trouble in Ondra's Gift (Pillars of Eternity)

I'll start with the background. I came to Dar Ondra, walked around almost all the houses, except for the salt mast. I took almost all the quests (I like to type them, and then do it in a row). So that's it. I take, as it seems to me, the last assignment, namely the scepter for the animator. I collect all three parts and see the soul, as it turned out this task is brave Derrin. So now the whole crux of the problem. He took it and tried to enter the salty mast. After that, the game crashed with an error sound. I think the game crashes sometimes - it's not scary. After loading in this location, the game crashes regularly: in battle, when trying to take on a new task, brave Derrin, when saving, when trying to enter any house. Has anyone encountered such a problem and is there any solution? If not, are there story quests there and can it just not be bypassed?