We have a similar problem with my friend on PS4. We played FIFA 19 without any problem. Now we can play coop without problem. However, when I invite him to game (friendly match online), the game crashes after the practice arena (game is being loading). FIFA shut down and there is a PS4 error code CE-34878-0. Online plays working without any problem (FUT, online season with "unknown players"). Please advise. Thank you.