Bug on gauntlet mode

Since this morning I have a problem with the gauntlet mode. I have to play the last game of the round but at the end of the game, whether I win, lose or abandon the game at the end I get the words "the servers and they can't respond to your request at the moment. Try again later" and throws me out of the ultimate team.

Of the 3 different teams prepared for the challenge (despite the fact that I had already played two games), it shows me that I have the opportunity to play with two of the 3 teams. I tried to play with both of the two that would be valid but it disconnects me, I also tried to play with a fourth team that we have no player in common with the other 3 but nothing.

Then from 3.00 pm instead I just can't get into the ultimate team mode, I tried to turn off the modem, uninstall and reinstall the game, but nothing. Could anyone help me?