---
page_type: error
code: 53666
message: "53666: Invalid public key for media tracks encryption in composition settings"
level: ERROR
product: Programmable Video
---

## Description

The public key configured in your account's composition settings is not valid.

Media composition has been marked as FAILED and will not be retried.

### Possible Causes

- If you have specified a public key to cryptographically protect media tracks, this is most likely due to the fact that the key value is not correct.

### Possible Solutions

- In the composition settings section of your account's console, set a valid public key or disable the encryption (media will be uploaded in raw).