Tell the user why they can't send requests on self-built instance

Assets/Scripts/DraggableUI.cs

@@ -1,6 +1,5 @@
 using UnityEngine;
 using UnityEngine.EventSystems;
-using TMPro;
 using UnityEngine.UI;
 using System.Collections.Generic;
 
@@ -100,4 +99,4 @@ public class DraggableUI : MonoBehaviour, IDragHandler, IBeginDragHandler
         result = Vector3.zero;
         return false;
     }
-}
+}