Still doesn't work man, this shi is so random bruh

I'm always never able to join my friends in a lobby or in game, it always says unable to join game session. I was able to play with them last night but after that its not letting me join. Does anyone else have this problem? if so, do you know any fixes?

Whenever I try to load up any servers my game just freezes for a bit then crashes, does anyone know a fix?