Mariechan

Hello I dont know if I do it right and send my question in the right place, but I have big problems with the game since today. I thought I play again after a while but first I wasnt able to login because the game told me I'm already in the game, whats not ture. And then when I already was able to login my pokemon got exp but never reached next lvl. Also my pokemon suddenly was fainted while it was not or I won against a whild pokemon but the game told me my pokemon fainted??? So I changed the pokemon and it suddenly apeared on the other side. like I had to fight it. So wth is going on?