opencagedata_invalid_request

{

    "licenses": [
        {
            "name": "CC-BY-SA",
            "url": "http://creativecommons.org/licenses/by-sa/3.0/"
        },
        {
            "name": "ODbL",
            "url": "http://opendatacommons.org/licenses/odbl/summary/"
        }
    ],
    "results": [ ],
    "status": {
        "code": 400,
        "message": "Attribute (format) does not pass the type constraint because: not a valid format"
    },
    "thanks": "For using an OpenCage Data API",
    "timestamp": {
        "created_http": "Thu, 07 Aug 2014 14:27:29 GMT",
        "created_unix": 1407421649
    },
    "total_results": 0,
    "we_are_hiring": "http://lokku.com/#jobs"

}