---
page_type: error
code: 51114
message: "51114: Twilsock: Invalid access token header"
level: ERROR
---

## Error - 51114

### Invalid access token header

#### Possible Causes

The token has an invalid header.

#### Possible Solutions

Confirm a valid token is being passed in the request.

To check whether the access token is structurally correct, you can use the tools available at [jwt.io](https://jwt.io).