You've used an unsupported request or response content type, such as application/xml. Try the operation again using application/json.
{
"type": "unsupported_media_type",
"title": "Unsupported Media Type",
"instance": "12ab3c45-789d-01ef-2gh3-ijk4l56m78no",
"status": 415,
"detail": "Unsupported media type"
}