403 forbidden response

403 forbidden response

I get a 403 forbidden response with the following response when trying to fetch user's posts:
  1. {
    "message": "Empty response from TikTok.",
    "status": "error",
    "statusCode": 200
    }
Any idea how what seems to be the problem? I send a valid SecUID since it sometimes works (rarely but still sometimes it does).
the user has posts so it's not possible that the response should be empty