crashes

Hey, so once every hour or two... my audio will cut out and stop working until I restart. This usually happens when all my menus turn to white blocks instead of the textured classical aesthetic you guys put. I can still click stuff and play but, all my menus turn white and no audio and it...

So I've not played in a couple of weeks, and I come back and there's a small update. Suddenly I have nothing but crashes when I play, and I can't even finish a single simple mission before it crashes to my desktop, usually with an annoying repeating sound glitch that won't stop until I restart...

Sometimes the game just up and closes without any reason no crash reports or anything pops up to say what happened game just closes. It tends to happen every couple of hours and be really annoying when seconds away from beating a longer quest. Is this a known issue?