INTERNAL SERVER ERROR IN RESPONSE OF EXPORT PRODUCT ENDPOINT.

Greetings,

I am trying to fetch enactments which are more than maxPagePullSize. So I am getting productExportEndpoint URL. I am sending GET request to productExportEndpoint with JWT (bearer token) in authentication and in headers as follows: 

I am making JWT like this

{

  iss: 'ams',

  aud: '-App's-token-key-',

  iat: 1589440030447,

  exp: 1589441830447,

  'o.a.p.ctenantId': '--tenant-id--'

}

I am signing this jwt with App's token secret and sending it in Authorization header.

Trial 1

headers: {

    'Content-Type': 'application/json',

    Authorization: 'Bearer token',

    'invocation-id': '--invocation-id--',

    'dataset-id': '--dataset-id--'

  },

trial 2

headers: {

    'Content-Type': 'application/json',

    Authorization: 'Bearer --token--',

    'OMC-ID': '--instance-id--',

     'INVOCATION-ID': '--invocation-id--',

    'DATASET-ID': '--dataset-id--'

  },

While trying to send GET request to productExportEndpoint, I am getting 'INTERNAL SERVER ERROR' in response of the above request.