If you have set up a GIT token so you can upload to GIT etc then be aware that your token will expire at some point (unless you selected “no expiration”).
When your token nears it’s expiration date you will receive an email notification with a button you can click to begin the process of regenerating your token.
Regeneration does not extend your existing token, it will create a new token.
This means you will need to re-establish the permissions that were applied to your original token. If you don’t do this then you will have problems.