URL    = "https://b24-ar17wx.bitrix24.by/rest/1/ps5...";
    TaskID = "4454";

    Result = OPI_Bitrix24.DeleteTask(URL, TaskID);

    URL    = "b24-ar17wx.bitrix24.by";
    Token  = "1f4e7c67006e9f06006b12e400000001000...";
    TaskID = "4456";

    Result = OPI_Bitrix24.DeleteTask(URL, TaskID, Token);