error handling client message [C] 14 UseItemjava.lang.ArithmeticException: / by zero at net.sf.l2j.gameserver.model.L2PetInstance.startFeed(L2PetInstance.java:716) at net.sf.l2j.gameserver.handler.itemhandlers.PetSummon.useItem(PetSummon.java:139) at net.sf.l2j.gameserver.clientpackets.UseItem.runImpl(UseItem.java:126) at net.sf.l2j.gameserver.clientpackets.ClientBasePacket.run(ClientBasePacket.java:56) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)