error handling client message [C] 38 Say2java.lang.NoSuchMethodError: net.sf.l2j.gameserver.model.L2PcInstance.getKnownPlayers()Lnet/sf/l2j/util/L2ObjectHashSet; at net.sf.l2j.gameserver.clientpackets.Say2.runImpl(Say2.java:147) 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)java.lang.NoSuchMethodError: net.sf.l2j.gameserver.model.L2NpcInstance.getKnownPlayers()Lnet/sf/l2j/util/L2ObjectHashSet; at net.sf.l2j.gameserver.model.L2NpcInstance.updateAbnormalEffect(L2NpcInstance.java:131) at net.sf.l2j.gameserver.model.L2Character.stopStunning(L2Character.java:740) at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.java:1526) at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable.java:163) at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable.java:153) at net.sf.l2j.gameserver.model.L2Character.onHitTimer(L2Character.java:2268) at net.sf.l2j.gameserver.model.L2PcInstance.onHitTimer(L2PcInstance.java:1202) at net.sf.l2j.gameserver.model.L2Character$HitTask.run(L2Character.java:168) at java.util.concurrent.Executors$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)java.lang.reflect.InvocationTargetException at sun.reflect.GeneratedConstructorAccessor25.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at net.sf.l2j.gameserver.skills.EffectTemplate.getEffect(EffectTemplate.java:71) at net.sf.l2j.gameserver.model.L2Skill.getEffects(L2Skill.java:1067) at net.sf.l2j.gameserver.handler.skillhandlers.Pdam.useSkill(Pdam.java:94) at net.sf.l2j.gameserver.model.L2Character.callSkill(L2Character.java:2756) at net.sf.l2j.gameserver.model.L2Character.onMagicUseTimer(L2Character.java:2647) at net.sf.l2j.gameserver.model.L2Character$MagicUseTask.run(L2Character.java:218) at java.util.concurrent.Executors$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)Caused by: java.lang.NoSuchMethodError: net.sf.l2j.gameserver.model.L2NpcInstance.getKnownPlayers()Lnet/sf/l2j/util/L2ObjectHashSet; at net.sf.l2j.gameserver.model.L2NpcInstance.updateAbnormalEffect(L2NpcInstance.java:131) at net.sf.l2j.gameserver.model.L2Character.startStunning(L2Character.java:697) at net.sf.l2j.gameserver.skills.EffectStun.onStart(EffectStun.java:43) at net.sf.l2j.gameserver.model.L2Effect.scheduleEffect(L2Effect.java:234) at net.sf.l2j.gameserver.model.L2Effect.<init>(L2Effect.java:144) at net.sf.l2j.gameserver.skills.EffectStun.<init>(EffectStun.java:33) ... 17 more