Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Beta Technical issues

I have a quest that sends me into a cave, to fight a malfunctioning robot made by the Wizard Arhu.
There is an area before the cave where you have a fight with a large group of skeletons, and zombies.

I have been to the area, killed them all, entered the cave, killed the robot, and got out on the other side of the cave, where you land on the path towards the four statues.

From this side(statue side) I can not re-enter the cave. The cogs/interact icon apears when I mouseover the cave, but it will not let me enter.

The quest never continued for me, it is not finished.

I tried teleporting to the original entrance, but as soon as I cross the bridge leading up to the area where the zombies/skeletons were, the game crashes. This happens every time.
I have restart the game and my computer a couple times to rule that out.
And I have also tried to approach the cave from another road. Which also caused my game to crash.

Hope I have described it clear enough, and hope it helps!
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Edit:

Also just encountered another Crash Moment.

I have to return a quest in the Black Cove to some ghosts.
When I enter the Black Cove and try to save the game it crashes.
And Also after I completed the quest and go outside it seems to crash whenever I try to save the game.
The quest is named Nick's head or something.