TCP/IP Unity Android ERROR Helfe

Hey all I am making a android game using unity3d, I want to control my game from my laptop I made a TCP/IP chat like program to get the input from my keyboard to my android over internet I made one for my Laptop (Windows form APP) and one for Unity, everything works except for one little annoying error.

ERROR: I want when I press the X button to move a sphere from point A to point B but when send the "x" value it says :

INTERNAL_get_position can only be called from the main thread. Constructors and field initializers will be executed from the loading thread when loading a scene. Don't use this function in the constructor or field initializers, instead move initialization code to the Awake or Start function.

and when I close the Windows form APP the ball then moves what to do I tried the Awake and the start functions too.

PS: I am testing this on the same computer so its not about the IPAddresses.

here is my code for the unity part:

     using UnityEngine;
         using System.Collections;
         using System.Text;
         using System;
         using System.Net;
         using System.Net.Sockets;
         public class CHAT : MonoBehaviour {
    
 
      private Socket sck;
         EndPoint epLocal, epRemote;
     
         //Gameobjects
        public Transform ball , point;
         //logic
       static Boolean arreivedX = false;
        string xIsHere;
         // Use this for initialization
         void Start () {
             
         sck = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
         sck.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
         epLocal = new IPEndPoint(IPAddress.Parse("192.168.1.9"), Convert.ToInt32("81"));
         sck.Bind(epLocal);
         epRemote = new IPEndPoint(IPAddress.Parse("192.168.1.9"), Convert.ToInt32("80"));
         sck.Connect(epRemote);
         Debug.Log("COnnected");
         byte[] buffer = new byte[1500];
         sck.BeginReceiveFrom(buffer, 0, buffer.Length, SocketFlags.None, ref epRemote, new AsyncCallback(MessageCAllBack), buffer);
   
     }
 
     void Awake()
     {
        
         
     }
     
     // Update is called once per frame
     void Update () {
 
         if (arreivedX)
         {
             ball.position = Vector3.MoveTowards(ball.position, point.position, 5 * Time.deltaTime);
             
         }
     }
 
   private void MessageCAllBack(IAsyncResult aResult)
     {
         try
         {
             int size = sck.EndReceiveFrom(aResult, ref epRemote);
 
             if (size > 0)
             {
                 byte[] receivedData = new byte[1464];
                 receivedData = (byte[])aResult.AsyncState;
 
                 ASCIIEncoding eEncoding = new ASCIIEncoding();
                 string receivedMessage = eEncoding.GetString(receivedData);
                //bn3mal if statement bnshof weslat el X wela la2 w iza weslat bnmasi el tabeh
                
                 if (receivedMessage.Contains("x"))
                 {
                     Debug.Log("X is here");
                    
                     arreivedX = true;
                    
                 }
                
                 //b3deen bntba3 el msg bs b7aletna bdna n5li el touch active.
                 //ListMessage.Items.Add("Sender:" + receivedMessage);
             }
 
             byte[] buffer = new byte[1500];
             sck.BeginReceiveFrom(buffer, 0, buffer.Length, SocketFlags.None, ref epRemote, new AsyncCallback(MessageCAllBack), buffer);
 
         }
         catch(Exception exp)
         {
             Debug.Log(exp.ToString());
         }
 
     }
     
 }