i can not paly the game

This issue has been going on for over five days. I can't play or even finish Objective or SBC. Every time, it says "Ultimate Team Server Error" and kicks me out of Ultimate Team. If I'm playing FUT, Rivals, or even Squad Battle, the same problem occurs. It says "Connection Lost" and kicks me out. When I try to log back in, it says I'm the one who disconnected. I uninstalled and reinstalled the game, and I also uninstalled and reinstalled EA App, but the problem still exists. I'm frustrated with all these problems. What am I supposed to do to play the game? (i paly on pc)