I'm also getting quite aggravated by the amount of crashes I get while attempting to join a game. Usually I'd simply have to restart my computer and the game will work. Today, that's not even working.
I know my computer doesn't even reach the minimum system requirements, but I'm certain that the problem has nothing to do with that for I've been able to play a number of games.
It happens a lot when it's my first game of the day. Even if i just turn my computer on and try to join a game, it will crash right away. So now, I can't even play the game anymore.
I've tried to search up on forums for possible solutions and still nothing works. Also, it only crashes when starting the game, after it enters there isn't a single problem.