I used quickfix dll, my code is below but not logon

20240429-14:07:44.936 : Session FIXT.1.1:BIxxx/xxx->xxx already disconnected: Resetting…
20240429-14:07:44.954 : Session reset: New session
20240429-14:07:44.957 : Created session
20240429-14:07:45.055 : Connecting to xxx on port xxx
20240429-14:07:45.349 : Connection succeeded
20240429-14:07:45.401 : Initiated logon request
20240429-14:07:45.580 : Session FIXT.1.1:BIxxx/xxx->xxx disconnecting: System.Net.Sockets.SocketException (10054): An existing connection was forcibly closed by the remote host.
at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.CreateException(SocketError error, Boolean forAsyncThrow)
at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ReceiveAsync(Socket socket, CancellationToken cancellationToken)
at System.Net.Sockets.Socket.ReceiveAsync(Memory`1 buffer, SocketFlags socketFlags, Boolean fromNetworkStream, CancellationToken cancellationToken)
at System.Net.Sockets.Socket.BeginReceive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags, AsyncCallback callback, Object state)
at System.Net.Sockets.NetworkStream.BeginRead(Byte[] buffer, Int32 offset, Int32 count, AsyncCallback callback, Object state)
at QuickFix.SocketInitiatorThread.ReadSome(Byte[] buffer, Int32 timeoutMilliseconds)
at QuickFix.SocketInitiatorThread.Read()
at QuickFix.Transport.SocketInitiator.SocketInitiatorThreadStart(Object socketInitiatorThread)
at System.Threading.Thread.StartCallback()
End of stack trace from previous location —
at QuickFix.SocketInitiatorThread.ReadSome(Byte[] buffer, Int32 timeoutMilliseconds)
at QuickFix.SocketInitiatorThread.Read()

using QuickFix;
using QuickFix.Fields;
using QuickFix.FIXT11;
using QuickFix.Transport;

class Program
{
    static void Main(string[] args)
    {
        try
        {
            SessionSettings settings = new SessionSettings("fix.cfg");

            string beginString = settings.Get().GetString("BeginString");
            string senderCompID = settings.Get().GetString("SenderCompID");
            string targetCompID = settings.Get().GetString("TargetCompID");
            string username = settings.Get().GetString("Username");
            string password = settings.Get().GetString("Password");

            SessionID sessionID = new SessionID(beginString, senderCompID, targetCompID);

            IApplication application = new MyQuickFixApp(username, password);
            IMessageStoreFactory storeFactory = new FileStoreFactory(settings);
            ILogFactory logFactory = new FileLogFactory(settings);
            IMessageFactory messageFactory = new DefaultMessageFactory();

            SocketInitiator initiator = new SocketInitiator(application, storeFactory, settings, logFactory, messageFactory);

            initiator.Start();

            Console.ReadLine();

            initiator.Stop();
        }
        catch (Exception e)
        {
            Console.WriteLine("Error: " + e.ToString());
            Console.WriteLine("Press enter to exit");
            Console.ReadLine();
        }
    }
}

public class MyQuickFixApp : IApplication
{
    private string username;
    private string password;

    public MyQuickFixApp(string username, string password)
    {
        this.username = username;
        this.password = password;
    }

    public void FromAdmin(QuickFix.Message message, SessionID sessionID)
    {
        Console.WriteLine("FromAdmin: " + message);
    }

    public void FromApp(QuickFix.Message message, SessionID sessionID)
    {
        Console.WriteLine("FromApp: " + message);
    }

    public void OnCreate(SessionID sessionID)
    {
        Console.WriteLine("OnCreate: " + sessionID);
    }

    public void OnLogon(SessionID sessionID)
    {
        Console.WriteLine("OnLogon: " + sessionID);
    }

    public void OnLogout(SessionID sessionID)
    {
        Console.WriteLine("OnLogout: " + sessionID);
    }

    public void ToAdmin(QuickFix.Message message, SessionID sessionID)
    {
        if (message is Logon)
        {
            QuickFix.Message logon = new QuickFix.Message();
            logon.Header.SetField(new MsgType(MsgType.LOGON));
            logon.SetField(new Username(username));
            logon.SetField(new Password(password));
            logon.SetField(new StringField(1137, "9"));
            Session.SendToTarget(logon, sessionID);
        }

        Console.WriteLine("ToAdmin: " + message);
    }

    public void ToApp(QuickFix.Message message, SessionID sessionID)
    {
        Console.WriteLine("ToApp: " + message);
    }
}

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