Google Play games Services Multiplayer

Logging in and Game initialization and room initialization is up and working,but.. The transfer of data between the players seems to be broken and after trying to find the reason this is what i came up with Spawned two prefabs on level start(enemy and player) Player -

 void Update(
 \\handle movement
 MultiplayerController.Instance.SendMyUpdate (transform.position.x, transform.position.y);
 }

Here is my MultiplayerController.cs (segment)

 public void SendMyUpdate(float posx,float posy) {
         _updateMessage.Clear ();
         _updateMessage.AddRange (System.BitConverter.GetBytes (posX));  
         _updateMessage.AddRange (System.BitConverter.GetBytes (posY));  
         byte[] messageToSend = _updateMessage.ToArray(); 
         Debug.Log ("Sending my update message  " + messageToSend + " to all players in the room");
         PlayGamesPlatform.Instance.RealTime.SendMessageToAll (false, messageToSend);
         Debug.Log (messageToSend);
     }
     

The logcat output tells me that in myController.cs the SendMyUpdate() isn't set to a reference of an object. How do i solve this?