Fix for #4299.

L2_GameServer/java/com/l2jserver/gameserver/model/actor/L2Character.java

@@ -1799,13 +1799,13 @@ public abstract class L2Character extends L2Object
 			sendPacket(sm);
 		}
 
-		if (this instanceof L2PcInstance)
+		if (this instanceof L2Playable)
 		{
 			if (!effectWhileCasting && skill.getItemConsume() > 0)
 			{
 				if (!destroyItemByItemId("Consume", skill.getItemConsumeId(), skill.getItemConsume(), null, true))
 				{
-					sendPacket(new SystemMessage(SystemMessageId.NOT_ENOUGH_ITEMS));
+					getActingPlayer().sendPacket(new SystemMessage(SystemMessageId.NOT_ENOUGH_ITEMS));
 					abortCast();
 					return;
 				}