Downlink format issue

TTN Network and Services The Things Stack v3
1 
{
  "code": 7,
  "message": "error:pkg/auth/rights:no_application_rights (no rights for application `undefined@ttn`)",
  "details": [
    {
      "@type": "type.googleapis.com/ttn.lorawan.v3.ErrorDetails",
      "namespace": "pkg/auth/rights",
      "name": "no_application_rights",
      "message_format": "no rights for application `{uid}`",
      "attributes": {
        "uid": "undefined@ttn"
      },
      "correlation_id": "8a61611ded64474983ee11d71d395145",
      "code": 7
    }
  ]
}
2
  1. Please use the formatting tools at the top of the text entry box. Makes messages a lot easier to read.
  2. It helps if you do not just dump an error message (did you read that message?), but add some information on what you try to achieve and what you expect to happen, what you do to make that happen and what actually happens. We are all volunteers spending our time to help out and having to guess makes helping a lot harder.
  3. Read the error messages the stack provides you. In this case you have a permission issue, nothing to do with formatting of the downlink data, may-be with the call but as you didn’t provide that information we can only guess.
3

Is this related to your other post?