Can't start new game.... Last game didn't end!??... I'M GONNA DIE IF I DON'T PLAY TEEMO! HALP RITO!!

I couldn't start a new game because the client said I was already in a game. So I restarted my client and it asks me to reconnect to the game I just ended! But we won that game! IT OVER, WE SQUASHED EM, I WANNA SQUASH EM AGAIN (jk I'm scrub).

Pls, I cannot play Teemo because of phantom game

halp