How to fix password authentication issue on Git - delete the cache

You can no longer use password authentication after August 13, 2021.

As of today, you must use a personal access token instead.

remote: Support for password authentication was removed on August 13, 2021. Please use a personal access token instead.

Although you create a token, your Git may not ask you credential for this new way which is used a token.

What you can do is deleting previous cache that you've been using with password authentication.

'git credential-manager uninstall'

This will take care of it.
Thanks.

[Guava]

You can use 'git credential-osxkeychain erase' on Mac. :)