When using the new Sandbox API url we constantly get HTTP error code 500 with the following body: {"status": 500, "error": {"type": ["api_error"], "message": "The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application."}} The URL we use: https://sandbox.api.peopledatalabs.com/v5/person/search Body: {"query": {"query": {"match_all": {}}}, "titlecase": true, "size": 100}