Make fields optional if they can't be handled correctly

[prostraction]

GET /v1/moonPhaseDate?utc=5&day=1&month=1&year=9999&hour=12&minute=0&second=0&lang=ru&latitude=51.1655&longitude=71.4272

{
  "BeginDay": {
    "MoonDays": 0,
    "Illumination": 82.27,
    "Phase": {
      "Name": "Waning Gibbous",
      "NameLocalized": "Убывающая луна",
      "Emoji": "🌖",
      "IsWaxing": false
    },
    "Zodiac": {
      "Name": "Virgo",
      "NameLocalized": "Дева",
      "Emoji": "♍"
    }
  },
  "CurrentState": {
    "MoonDays": 0,
    "Illumination": 78.09,
    "Phase": {
      "Name": "Waning Gibbous",
      "NameLocalized": "Убывающая луна",
      "Emoji": "🌖",
      "IsWaxing": false
    },
    "Zodiac": {
      "Name": "Virgo",
      "NameLocalized": "Дева",
      "Emoji": "♍"
    }
  },
  "EndDay": {
    "MoonDays": 0,
    "Illumination": 73.67,
    "Phase": {
      "Name": "Waning Gibbous",
      "NameLocalized": "Убывающая луна",
      "Emoji": "🌖",
      "IsWaxing": false
    },
    "Zodiac": {
      "Name": "Virgo",
      "NameLocalized": "Дева",
      "Emoji": "♍"
    }
  },
  "MoonDaysDetailed": {
    "Count": 1,
    "Day": [
      {
        "IsBeginExists": false,
        "IsEndExists": false
      },
      {
        "IsBeginExists": false,
        "IsEndExists": false
      }
    ]
  },
  "ZodiacDetailed": {
    "Count": 1,
    "Zodiac": [
      {
        "Name": "Virgo",
        "NameLocalized": "Дева",
        "Emoji": "♍",
        "Begin": "0001-01-01T00:00:00Z",
        "End": "0001-01-01T00:00:00Z"
      }
    ]
  }
}