git fatal: Authentication failed for

Please make sure you have provided the correct credentials for authentication. Verify that the username and password or access token you are using are correct. If you are using a remote repository hosted on a platform like GitHub, check if your account has the necessary permissions to access the repository.

If you're using HTTPS, you might consider updating the saved credentials using the following command:

git config --global --unset credential.helper

Then try running the git command again and provide your credentials when prompted.

If you're using SSH, ensure that your SSH key is set up correctly and associated with your account. You can check if SSH is properly configured by running the following command:

ssh -T git@github.com

Make sure you see a successful authentication message.

If the issue persists, please provide more specific information about your setup and any error messages you are receiving so that I can assist you further.