Plutonium

I was playing Origins with a friend and problems came again. It wasn't my bug, but it was my friend's. What happens is that when we play Origins everything goes well, but somehow at any moment the game freezes for a moment and then quits. He says it stays open but he can't open it. If someone has a solution pls tell me.

WolflexZ Reinstalling seems to work, thank you, I don't know why it hadn't occurred to me

Today I wanted to play Origins with some friends using plutonium, but there is a bug (i think) that makes it very difficult for me to play it. When the game is starting the loading screen appears perfectly, but after a while it takes me and my friend out. This occurs both in custom and individual games. If anyone knows how to solve it, please tell me.