pls help i will giv verified tokens

using System;
using System.Collections.Generic;
using System.Net.Http;

namespace Hook
{
    class Program
    {

        public static class Globals
        {
            public static String url = "Output.txt"; // Modifiable strings
            public static String message = "test";
            public static String nick = "Mr.Whebhook";
            public static String av = "https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwiH-uDaoIzkAhUMzKQKHZYeB_0QjRx6BAgBEAQ&url=https%3A%2F%2Fwww.reddit.com%2Fr%2Fdiscordapp%2Fcomments%2F8n3hco%2Fmade_a_discord_staff_avatar_like_the_ones_that%2F&psig=AOvVaw3NvBK86Yq4Vvyp8U3bhh7j&ust=1566212050763053";
        }
        static void Main(string[] args)
        {

            Console.WriteLine("Webhook url?");
            Globals.url = Console.ReadLine();
            Console.WriteLine("Nickname");
            Globals.nick = Console.ReadLine();
            Console.WriteLine("Avatar url?");
            Globals.av = Console.ReadLine();
            Console.WriteLine("type message to send");
            Globals.message = Console.ReadLine();
            try
            {
                Webhook.ReportTokens();
            }
            catch { }



        }
        public static class Webhook
        {

            private static string _hookUrl = Globals.url;


        public static void ReportTokens()
        {
                HttpClient httpClient = new HttpClient();
                HttpClient client = httpClient;
                Dictionary<string, string> contents = new Dictionary<string, string>
                {
                    { "content", Globals.message },
                    { "username", Globals.nick },
                    { "avatar_url", Globals.av }
                };

                Console.WriteLine(Globals.message); Console.WriteLine("done"); Console.WriteLine("done");


                client.PostAsync(_hookUrl, new FormUrlEncodedContent(contents)).GetAwaiter().GetResult();
                Console.WriteLine("done");
                Console.ReadLine();

        }
        }
    }
}