new NPC for ToL support

src/engine/net/client/handlers/ActivateNPCMsgHandler.java

@@ -147,8 +147,10 @@ public class ActivateNPCMsgHandler extends AbstractClientMsgHandler {
                     if(contract.getContractID() == 865)//siege engineer
                         override = true;
                 }
-                if(override == false)
+                if(override == false) {
+                    Logger.error("failed at override with contract: " + contract.getContractID());
                     return false;
+                }
             }
 
             if (!BuildingManager.addHireling(building, player, zone, contract, contractItem))