error popup when trying to flag unboxed too frequently

src/engine/net/client/msg/VendorDialogMsg.java

@@ -101,8 +101,12 @@ public class VendorDialogMsg extends ClientNetMsg {
             if(!playerCharacter.getTimestamps().containsKey("lastBoxFlag"))
                 playerCharacter.getTimestamps().put("lastBoxFlag",System.currentTimeMillis() - 1000);
 
-            if(playerCharacter.getTimestamps().get("lastBoxFlag") + 10000 > System.currentTimeMillis())
+            if(playerCharacter.getTimestamps().get("lastBoxFlag") + 10000 > System.currentTimeMillis()) {
                 PlayerCharacter.unboxPlayer(playerCharacter);
+            }else{
+                ErrorPopupMsg.sendErrorPopup(playerCharacter, 49);
+                return;
+            }
         }
 
         // Restrict disc trainers to only characters who have