I opened my toribash a few moments ago and I saw that my flag is American, but I'm Brazilian, I have no idea how this could have happened, can anyone correct it please?

Hi, I moved your thread to Technical Support. Please read the rules of the board you're posting in before you make your thread.

Try login out of the forums, then log back in. That may fix it, otherwise you can download a vpn, log out of the forums, set the vpn to whatever country you want, then log back in and it should be set.