l’application ne veut pas me connecter a mon compte je ne peux donc pas jouer a rien
I am only able to provide support in English, but I will do what I can to help! I might suggest starting by uninstalling the Blizzard application then reinstalling it. It might also be a good idea to restart the home network by unplugging the router and modem for 5+ minutes before plugging them back in.
Let us know if this works for you!