Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - General Game Crashing

If you purchased/downloaded game thru Steam you could try to verify integrity of game cache. To do so..

Right Click Divinity: Original Sin in your game library
Click on Properties
Go to the Local Files tab
Click Verify Integrity of Game Cache
Prepare to wait 5-10 minutes while it checks.

I've had to do this a few times especially after either a game patch or Steam updated it's software. Not sure if it'll help but worth a try until someone more technical can help out.