> ## Documentation Index
> Fetch the complete documentation index at: https://ngrok.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Error 107

## ERR\_NGROK\_107

The authtoken you specified is properly formed, but it is invalid.
Your authtoken: `TOKEN`
This usually happens when:

* You reset your authtoken
* Your authtoken was for a team account that you were removed from
* You are using ngrok link and this credential was explicitly revoked
  Go to your ngrok dashboard and double check that your authtoken is correct:
  [https://dashboard.ngrok.com/get-started/your-authtoken](https://dashboard.ngrok.com/get-started/your-authtoken)

### Additional Information

The authtoken in your configuration file is no longer valid. You can learn more about the location of the ngrok.yml configuration file [here](https://ngrok.com/docs#config-location).

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.

### Possible Solutions

* Your authtoken may have been reset. Please check to make sure your authtoken at [https://dashboard.ngrok.com/get-started/your-authtoken](https://dashboard.ngrok.com/get-started/your-authtoken) matches the one that appears in your ngrok.yml configuration file.
* 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](/api-reference/credentials/create).

## Further help

If you're having trouble resolving this error, please reach out to [support@ngrok.com](mailto:support@ngrok.com?subject=Help%20with%20ERR_NGROK_107)