Invalid character '' in input string at LitJson.Lexer.NextToken ()

Here's my script:

 IEnumerator Refresh_()
{
    Debug.LogWarning("TODO: Loading Popup on.");

    rh.eLanguage language = tzGlobal.Instance.OPTION.language;

    string json = StreetUtility.LoadJsonFromStreamingAssets("notice.json");
    if (json != null)
    {
        // Separate only the necessary parts.
        LitJson.JsonData data = LitJson.JsonMapper.ToObject(json);
        json = data[language.ToString()].ToJson();

        notice = LitJson.JsonMapper.ToObject<string[]>(json);
    }

    string path = string.Format("{0}/{1}/language", rh.Const.LOCALIZATION_PATH, language);
    json = StreetUtility.LoadJsonFromResources(path);
    if (json != null)
    {
        // json load.
        Dictionary<string, string> dic = LitJson.JsonMapper.ToObject<Dictionary<string, string>>(json);

        // dictionary copy.
        dic_localization_text = new Dictionary<eTextKey, string>();
        eTextKey e;
        for (int i = 0; i < dic.Count; i++)
        {
            e = (eTextKey)i;
            dic_localization_text[e] = dic[e.ToString()];
        }

        // Run registered localize function.
        for (int i = 0; i < list_localize_method.Count; i++)
        {
            complete = false;
            list_localize_method[i].Invoke();
            yield return new WaitUntil(() => complete);
        }
    }

    Debug.LogWarning("TODO: Loading Popup off.");
}

Now what is happening here is that it loads the notice.json file but then as the execution goes this error will pop out

Failed to Load. LitJson.JsonException: Invalid character '' in input string at LitJson.Lexer.NextToken () [0x00000] in :0 at LitJson.JsonReader.ReadToken () [0x00000] in :0 at LitJson.JsonReader.Read () [0x00000] in :0 at LitJson.JsonMapper.ReadValue (LitJson.WrapperFactory factory, LitJson.JsonReader reader) [0x00000] in :0 at LitJson.JsonMapper.ToWrapper (LitJson.WrapperFactory factory, System.String json) [0x00000] in :0 at LitJson.JsonMapper.ToObject (System.String json) [0x00000] in :0 at StreetUtility.LoadJsonFromStreamingAssets (System.String path_with_extention_under_streaming_assets_folder) [0x00000] in :0 notice.json

Here's my code of my LoadJsonFromStreamingAssets() that i uses of calling my notice.json :

public static string LoadJsonFromStreamingAssets(string path_with_extention_under_streaming_assets_folder)
{
    string json = null;
    try
    {
        //Android Platform
#if UNITY_ANDROID
        string full_path = Path.Combine(Application.persistentDataPath, path_with_extention_under_streaming_assets_folder);
        if (full_path.Contains("://") || full_path.Contains(":///"))
        {
            WWW www = new WWW(full_path);
            while (!www.isDone) { }
            json = www.text;
        }
        else
        {
            json = File.ReadAllText(full_path);
        }
        Debug.Log("Loaded File : " + json);
        JsonData itemData = JsonMapper.ToObject(json);

#elif UNITY_IOS //IOS Platform

#elif UNITY_STANDALONE //PC Platform
        string full_path = string.Format("{0}/{1}", Application.streamingAssetsPath, path_with_extention_under_streaming_assets_folder);
        StreamReader reader = new StreamReader(full_path);
        json = reader.ReadToEnd().Trim();
        reader.Close();

        Debug.Log(json);
#endif
    }
    catch (Exception e)
    {
        Debug.LogWarningFormat("Failed to Load.\n{0}\n{1}", e, path_with_extention_under_streaming_assets_folder);
    }
    return json;
}

And here is my json file

{

"EN": [
"Cancel is available with Cancel button.",
"If you succeed in a lottery, you can receive additional rewards.",
"Round 2 and 3 are shorter than you think.",
"Please check the homepage in Confirm Game Method and Change Member Information."
],
"KR": [
"Cancel 버튼으로 배팅 취소가 가능합니다.",
"로또에 성공하면 추가적인 보상을 받을 수 있습니다.",
"라운드 2와 3은 생각보다 시간이 짧습니다.",
"게임 방법 확인 및 회원정보 변경은 홈페이지에서 확인해주세요."
],
"CN": [
"[中文] Cancel is available with Cancel button.",
"[中文] If you succeed in a lottery, you can receive additional rewards.",
"[中文] Round 2 and 3 are shorter than you think.",
"[中文] Please check the homepage in Confirm Game Method and Change Member Information."
],
"HK": [
"[广东话] Cancel is available with Cancel button.",
"[广东话] If you succeed in a lottery, you can receive additional rewards.",
"[广东话] Round 2 and 3 are shorter than you think.",
"[广东话] Please check the homepage in Confirm Game Method and Change Member Information."
]
}

And i uses JsonLint for verifying my json file and yes it is valid. I don't know why it is happening . Could someone point out what's going on ?