The authtoken in your configuration file is no longer valid. You can learn more about the location of the ngrok.yml configuration file here.You may have been removed from a team where you were formerly a member or your credential was explicitly revoked. In this case, your authtoken will no longer be valid to access the team account.
Please contact your former team’s account owner if you think you have been removed from the team in error or if you believe your credential should still be active.
You are using the tunnel credentials api and your authtoken has been deleted, or is malformed. Please provision a new one.