Telegram api не работает код

publicstatic async TaskSend(string message)
{
     var store =newFileSessionStore();
     var client =newTLSharp.Core.TelegramClient(store,"session");
     var connected = await client.Connect();
     var phoneNumber ="71234567899";//мой номер, с которого хочу отправить
     var hash = await client.SendCodeRequest(phoneNumber);
     var code ="1234";
     var user = await client.MakeAuth(phoneNumber, hash, code);
     var res = await client.ImportContactByPhoneNumber("79876543211");//номер на который хочу отправить
     await client.SendMessage(res.Value, message);
}
 
privatevoid button1_Click(object sender,EventArgs e)
{
     Task.Run(()=>Send("Hello"));
}

public static async Task Send(string message)
        {
            var store = new FileSessionStore();
            var client = new TLSharp.Core.TelegramClient(store, "session");
            var connected = await client.Connect();
            var phoneNumber = "71234567899"; 
            var hash = await client.SendCodeRequest(phoneNumber); 
            var code = "1234";
            var user = await client.MakeAuth(phoneNumber, hash, code);
            var res = await client.ImportContactByPhoneNumber("79876543211");
            await client.SendMessage(res.Value, message);
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
            Task.Run(() => Send("Hello"));
        }

Send("Hello").GetAwaiter();

 
        private void button1_Click(object sender, EventArgs e)
        {
            Task.Run(() => Send("Hello"));
        }