error handling client message [C] 21 RequestBypassToServer
java.lang.NoSuchMethodError: net.sf.l2j.gameserver.model.L2Attackable.getKnownPl
ayers()Ljava/util/Set;
        at net.sf.l2j.gameserver.ai.L2AttackableAI.changeIntention(L2AttackableA
I.java:216)
        at net.sf.l2j.gameserver.ai.L2CharacterAI.onIntentionIdle(L2CharacterAI.
java:89)
        at net.sf.l2j.gameserver.ai.AbstractAI.setIntention(AbstractAI.java:261)

        at net.sf.l2j.gameserver.ai.AbstractAI.setIntention(AbstractAI.java:215)

        at net.sf.l2j.gameserver.model.L2Attackable.removeKnownObject(L2Attackab
le.java:394)
        at net.sf.l2j.gameserver.model.L2MonsterInstance.removeKnownObject(L2Mon
sterInstance.java:136)
        at net.sf.l2j.gameserver.model.L2Character.teleToLocation(L2Character.ja
va:5504)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java
:174)
        at org.python.core.PyMethod.__call__(PyMethod.java:93)
        at org.python.core.PyObject.__call__(PyObject.java:619)
        at data.jscript.teleports.1101_teleport_to_race_track$py.onTalk$3(C:\177
6\gameserver\data\jscript\teleports\1101_teleport_to_race_track\__init__.py:59)
        at data.jscript.teleports.1101_teleport_to_race_track$py.call_function(C
:\1776\gameserver\data\jscript\teleports\1101_teleport_to_race_track\__init__.py
)
        at org.python.core.PyTableCode.call(PyTableCode.java:213)
        at org.python.core.PyTableCode.call(PyTableCode.java:426)
        at org.python.core.PyTableCode.call(PyTableCode.java:322)
        at org.python.core.PyFunction.__call__(PyFunction.java:193)
        at org.python.core.PyMethod.__call__(PyMethod.java:93)
        at org.python.core.PyObject.__call__(PyObject.java:570)
        at org.python.core.PyObject._jcallexc(PyObject.java:2573)
        at org.python.core.PyObject._jcall(PyObject.java:2605)
        at org.python.proxies.data.jscript.teleports.1101_teleport_to_race_track
$Quest$144.onTalk(Unknown Source)
        at net.sf.l2j.gameserver.model.quest.Quest.notifyTalk(Quest.java:223)
        at net.sf.l2j.gameserver.model.L2NpcInstance.showQuestWindow(L2NpcInstan
ce.java:886)
        at net.sf.l2j.gameserver.model.L2NpcInstance.onBypassFeedback(L2NpcInsta
nce.java:655)
        at net.sf.l2j.gameserver.model.L2FolkInstance.onBypassFeedback(L2FolkIns
tance.java:153)
        at net.sf.l2j.gameserver.model.L2TeleporterInstance.onBypassFeedback(L2T
eleporterInstance.java:93)
        at net.sf.l2j.gameserver.clientpackets.RequestBypassToServer.runImpl(Req
uestBypassToServer.java:94)
        at net.sf.l2j.gameserver.clientpackets.ClientBasePacket.run(ClientBasePa
cket.java:56)
        at java.util.concurrent.Executors$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)

error handling client message [C] 48 ValidatePosition
java.lang.NoSuchMethodError: net.sf.l2j.gameserver.model.L2Attackable.getKnownPl
ayers()Ljava/util/Set;
        at net.sf.l2j.gameserver.ai.L2AttackableAI.changeIntention(L2AttackableA
I.java:216)
        at net.sf.l2j.gameserver.ai.L2CharacterAI.onIntentionActive(L2CharacterA
I.java:134)
        at net.sf.l2j.gameserver.ai.AbstractAI.setIntention(AbstractAI.java:264)

        at net.sf.l2j.gameserver.ai.AbstractAI.setIntention(AbstractAI.java:230)

        at net.sf.l2j.gameserver.model.L2MonsterInstance.addKnownObject(L2Monste
rInstance.java:113)
        at net.sf.l2j.gameserver.util.CharacterKnownList.findCloseObjects(Charac
terKnownList.java:123)
        at net.sf.l2j.gameserver.util.CharacterKnownList.updateKnownObjects(Char
acterKnownList.java:60)
        at net.sf.l2j.gameserver.model.L2Character.updateKnownObjects(L2Characte
r.java:3203)
        at net.sf.l2j.gameserver.clientpackets.ValidatePosition.runImpl(Validate
Position.java:106)
        at net.sf.l2j.gameserver.clientpackets.ClientBasePacket.run(ClientBasePa
cket.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)