this is the error in the server console:


java.lang.ArrayIndexOutOfBoundsException: 81
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.getExpForLevel(PcStat.j
ava:182)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableSt
at.java:21)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExp(PcStat.java:40)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExpAndSp(Playa
bleStat.java:45)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExpAndSp(PcStat.java
:72)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.addExpAndSp(L
2PcInstance.java:7749)
        at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackabl
e.java:560)
        at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387)

        at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2
MonsterInstance.java:193)
        at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStat
us.java:151)
        at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus
.java:29)
        at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.j
ava:4839)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:359)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:312)
        at net.sf.l2j.gameserver.handler.skillhandlers.Mdam.useSkill(Mdam.java:1
58)
        at net.sf.l2j.gameserver.model.L2Character.callSkill(L2Character.java:46
11)
        at net.sf.l2j.gameserver.model.L2Character.onMagicUseTimer(L2Character.j
ava:4382)
        at net.sf.l2j.gameserver.model.L2Character$MagicUseTask.run(L2Character.
java:1525)
        at java.util.concurrent.Executors$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.ArrayIndexOutOfBoundsException: 81
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.getExpForLevel(PcStat.j
ava:182)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableSt
at.java:21)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExp(PcStat.java:40)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExpAndSp(Playa
bleStat.java:45)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExpAndSp(PcStat.java
:72)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.addExpAndSp(L
2PcInstance.java:7749)
        at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackabl
e.java:560)
        at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387)

        at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2
MonsterInstance.java:193)
        at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStat
us.java:151)
        at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus
.java:29)
        at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.j
ava:4839)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:359)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:312)
        at net.sf.l2j.gameserver.handler.skillhandlers.Mdam.useSkill(Mdam.java:1
58)
        at net.sf.l2j.gameserver.model.L2Character.callSkill(L2Character.java:46
11)
        at net.sf.l2j.gameserver.model.L2Character.onMagicUseTimer(L2Character.j
ava:4382)
        at net.sf.l2j.gameserver.model.L2Character$MagicUseTask.run(L2Character.
java:1525)
        at java.util.concurrent.Executors$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.ArrayIndexOutOfBoundsException: 81
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.getExpForLevel(PcStat.j
ava:182)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableSt
at.java:21)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExp(PcStat.java:40)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExpAndSp(Playa
bleStat.java:45)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExpAndSp(PcStat.java
:72)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.addExpAndSp(L
2PcInstance.java:7749)
        at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackabl
e.java:560)
        at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387)

        at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2
MonsterInstance.java:193)
        at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStat
us.java:151)
        at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus
.java:29)
        at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.j
ava:4839)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:359)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:312)
        at net.sf.l2j.gameserver.model.L2Character.onHitTimer(L2Character.java:3
892)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.onHitTimer(L2
PcInstance.java:2987)
        at net.sf.l2j.gameserver.model.L2Character$HitTask.run(L2Character.java:
1500)
        at java.util.concurrent.Executors$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.ArrayIndexOutOfBoundsException: 81
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.getExpForLevel(PcStat.j
ava:182)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableSt
at.java:21)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExp(PcStat.java:40)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExpAndSp(Playa
bleStat.java:45)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExpAndSp(PcStat.java
:72)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.addExpAndSp(L
2PcInstance.java:7749)
        at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackabl
e.java:560)
        at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387)

        at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2
MonsterInstance.java:193)
        at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStat
us.java:151)
        at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus
.java:29)
        at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.j
ava:4839)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:359)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:312)
        at net.sf.l2j.gameserver.model.L2Character.onHitTimer(L2Character.java:3
892)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.onHitTimer(L2
PcInstance.java:2987)
        at net.sf.l2j.gameserver.model.L2Character$HitTask.run(L2Character.java:
1500)
        at java.util.concurrent.Executors$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.ArrayIndexOutOfBoundsException: 81
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.getExpForLevel(PcStat.j
ava:182)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableSt
at.java:21)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExp(PcStat.java:40)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExpAndSp(Playa
bleStat.java:45)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExpAndSp(PcStat.java
:72)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.addExpAndSp(L
2PcInstance.java:7749)
        at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackabl
e.java:560)
        at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387)

        at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2
MonsterInstance.java:193)
        at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStat
us.java:151)
        at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus
.java:29)
        at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.j
ava:4839)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:359)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:312)
        at net.sf.l2j.gameserver.model.L2Character.onHitTimer(L2Character.java:3
892)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.onHitTimer(L2
PcInstance.java:2987)
        at net.sf.l2j.gameserver.model.L2Character$HitTask.run(L2Character.java:
1500)
        at java.util.concurrent.Executors$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.ArrayIndexOutOfBoundsException: 81
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.getExpForLevel(PcStat.j
ava:182)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableSt
at.java:21)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExp(PcStat.java:40)
        at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExpAndSp(Playa
bleStat.java:45)
        at net.sf.l2j.gameserver.model.actor.stat.PcStat.addExpAndSp(PcStat.java
:72)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.addExpAndSp(L
2PcInstance.java:7749)
        at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackabl
e.java:560)
        at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387)

        at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2
MonsterInstance.java:193)
        at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStat
us.java:151)
        at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus
.java:29)
        at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.j
ava:4839)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:359)
        at net.sf.l2j.gameserver.model.L2Attackable.reduceCurrentHp(L2Attackable
.java:312)
        at net.sf.l2j.gameserver.model.L2Character.onHitTimer(L2Character.java:3
892)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.onHitTimer(L2
PcInstance.java:2987)
        at net.sf.l2j.gameserver.model.L2Character$HitTask.run(L2Character.java:
1500)
        at java.util.concurrent.Executors$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)