Pls check if u are not loged in on console or webapp - today is EA maintenance till 2 pm UK time - so try after it and let us know ( iv been running the 2.7 version since moday evening and it is only disconecting while im entering the FUT on webapp to check ). Iv got the server error last night also but it was also due the EA matters.
It's just disconnecting you if you are logged in (Webapp/console) other than that it's running pretty solid all day long.