I have the same crashing problem now on 2 CM's. Someone from EA asked me if this is only in 1 CM or more. So I started a new one, played 5 hours and again after the first competition game after the first transfer window, again crashing. Can't even load the CM anymore after the crash, while others I can load. So thank you again EA for being a tester for your company. Can I declare the hours?
I don't think there is a standard fix. I doubt there is any one solution or definite set of settings that stop it crashing.
I have tried every combo of settings. I repair FIFA 20 times a week or so. I examine event logs. I research online for hour after hour.
I fix software, hardware, telecommunications, network, and random IT related issues for a multinational corporation for a living, but am unable to find a specific fix for a game.
FIFA is unfixable from a customer point if view. It's just unstable.