erro de e-mail

Ola alguem sabe como me ajudar, comprei o avast, mas coloquei um e mail invalido, para envio de licença como altero

Please post English here, else use the forum section for your language.
https://forum.avast.com/index.php?board=21.0

Oi, postar aqui ==> https://forum.avast.com/index.php?board=21.0

What he said.

Hello .Anyone know how to help me, I bought avast, but I put an invalid email for sending the license file. How do I change it?