[Help] Socket Exception

System.Net.Sockets.SocketException (0x80004005): An operation was attempted on s
omething that is not a socket
   at System.Net.Sockets.Socket.Select(IList checkRead, IList checkWrite, IList
checkError, Int32 microSeconds)
   at ClassicConquer.Necessaries.ServerSockets.SocketPoll.CheckUp() in d:\Source\ServerSockets\SocketPoll.cs:line 55

  public static class SocketPoll
    {
        const int SOCKET_PROCESS_INTERVAL = 20, FD_SETSIZE = 2048;

        public readonly static SafeCollections.SafeList<SecuritySocket> ConnectionPoll = new SafeCollections.SafeList<SecuritySocket>();

        private static ServerSocket[] Sockets;

        public static void Create(string group, params ServerSocket[] _Sockets)
        {
            Sockets = _Sockets;
            var ThreadItem = new ThreadGroup.ThreadItem(SOCKET_PROCESS_INTERVAL, group, CheckUp);
            ThreadItem.Open();
        }

        public static void CheckUp()
        {
            try
            {
                List<Socket> RecSockets = new List<Socket>();
                ///   List<Socket> SendSockets = new List<Socket>();
                //   List<Socket> ErrorSockets = new List<Socket>();
                if (ConnectionPoll.Count > 0 || Sockets.Length > 0)
                {

                    System.Diagnostics.Stopwatch timer = new System.Diagnostics.Stopwatch();
                    timer.Start();

                    foreach (var socket in Sockets)
                    {
                        if (socket == null || socket.IsAlive == false)
                            continue;
                        RecSockets.Add(socket.GetConnection);
                    }

                    foreach (var socket in ConnectionPoll.GetValues())
                    {
                        if (socket.Alive)
                        {
                            RecSockets.Add(socket.Connection);
                        }
                    }
                    //  IntPtr[] readmask = null;
                    try
                    {
                        Socket.Select(RecSockets, null, null, 0);
                        //    int test = WindowsAPI.ws2_32.MySocketSelect(FD_SETSIZE, RecSockets, 100, out readmask);
                    }
                    catch (Exception e)
                    {
                        MyConsole.WriteLine(e.ToString());
                        MyConsole.SaveException(e);
                    }

                    foreach (var socket in ConnectionPoll.GetValues())
                    {
                        try
                        {
                            //  if (readmask != null && WindowsAPI.ws2_32.FD_ISSET(readmask, socket.Connection.Handle))

                            if (RecSockets.Contains(socket.Connection))
                                socket.ReceiveBuffer();
                            socket.HandlerBuffer();


                            while (SecuritySocket.TrySend(socket)) ;
                        }
                        catch (Exception e)
                        {
                            Console.WriteLine(e.ToString());
                        }

                    }
                    foreach (var socket in Sockets)
                    {
                        try
                        {
                            if (socket == null)
                                continue;

                            //if (readmask != null && WindowsAPI.ws2_32.FD_ISSET(readmask, socket.GetConnection.Handle))
                            if (RecSockets.Contains(socket.GetConnection))
                                socket.Accept();
                        }
                        catch (Exception e)
                        {
                            Console.WriteLine(e.ToString());
                        }
                    }
                    timer.Stop();
                    if (timer.ElapsedMilliseconds > 100)
                    {
                        //Console.WriteLine("stamp -> " + timer.ElapsedMilliseconds); 
                    }


                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }
        }
    }