Are you using a controller? because if you do, then you might have the exact same problems as me. I found a workaround (still waiting for an answer here on the forum for a complete fix):
when the game crashes, try to unplug the controller and if the game then continues (which it does for me) you can plug it back in and play.
This does work in my case, where the crashes occur in any lobby of other players that I join (not my own, only others lobbies) and the game first starts to freeze for a few seconds and then crashes. This usually happens after being around 1 minute in the lobby.
This was my post: Game started crashing
anyways, if you use a controller try it out and tell me if it works.