Account for different error response formats about openrouteservice-r HOT 1 OPEN

{
  "geocoding": {
    "version": "0.2",
    "attribution": "/v1/attribution",
    "query": {
      "size": 10,
      "private": false,
      "lang": {
        "name": "English",
        "iso6391": "en",
        "iso6393": "eng",
        "defaulted": false
      },
      "querySize": 20
    },
    "errors": [
      "invalid param 'text': text length, must be >0"
    ],
    "engine": {
      "name": "Pelias",
      "author": "Mapzen",
      "version": "1.0"
    },
    "timestamp": 1528812928983
  },
  "type": "FeatureCollection",
  "features": []
}