Heyy, I have the same issue. I bought this game couple of days ago and I have played with my friend for like 10 hours straight lets say. The next day we wanted to play again (there was a patch) and it keeps giving us this error too. Im really frustrated because I bought this game mainly for the reason I can play with my friends.
I tried every solution I could think of but nothing works. I contacted the support so I hope we will get some feedback on this.
