Can't open settings. On windows App

When i try open setting on the App. a pop out window appears asking for Authorization password. i enter the code and is not the same as my Avast account. I try changing the passcode. doesn’t work

Hello choyos33, welcome to the community.

What app are you talking about, Avast Antivirus for Windows?
If so, it’s a different one from Avast Account. And there is no way to reset password, you have to reinstall Avast from scratch (i.e. with uninstall utility).

Assuming the problem is as NON outlined:
Regaining access to the Avast program without a password

Download the avast! Uninstall Utility, avastclear.exe