409: Conflict

Your request had an invalid session-id header.

To fix this, follow these steps:

1. When reading a response, get its X-Transmission-Session-Id header and remember it
2. Add the updated header to your outgoing requests
3. When you get this 409 error message, resend your request with the updated header

This requirement has been added to make CSRF attacks more difficult.

X-Transmission-Session-Id: 4uVVSA5JdZbjjNEaeX8qrVKuOvQHWBHFm2tlk2qQVRLcpfir