Gauntlet keeps kicking me out after I win the match and it has ended.

Hello While doing the Ultimate Challenge 8 mission, for the last 3 days, when I finish a match, it kicks me out of Ultimate Team at the end of the game. I return to the main menu and I can't complete any missions or get the packs I deserve.

EA, you're absolutely unhelpful. I've waited over 24 hours, but the result is the same. Then people wonder why people quit the game. You don't even respond. Give me the packages I deserve...