this is the error in the server console:java.lang.ArrayIndexOutOfBoundsException: 81 at net.sf.l2j.gameserver.model.actor.stat.PcStat.getExpForLevel(PcStat.java:182) at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableStat.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(PlayableStat.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(L2PcInstance.java:7749) at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackable.java:560) at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387) at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2MonsterInstance.java:193) at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStatus.java:151) at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus.java:29) at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.java: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:158) at net.sf.l2j.gameserver.model.L2Character.callSkill(L2Character.java:4611) at net.sf.l2j.gameserver.model.L2Character.onMagicUseTimer(L2Character.java: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.java:182) at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableStat.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(PlayableStat.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(L2PcInstance.java:7749) at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackable.java:560) at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387) at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2MonsterInstance.java:193) at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStatus.java:151) at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus.java:29) at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.java: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:158) at net.sf.l2j.gameserver.model.L2Character.callSkill(L2Character.java:4611) at net.sf.l2j.gameserver.model.L2Character.onMagicUseTimer(L2Character.java: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.java:182) at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableStat.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(PlayableStat.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(L2PcInstance.java:7749) at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackable.java:560) at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387) at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2MonsterInstance.java:193) at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStatus.java:151) at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus.java:29) at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.java: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:3892) at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.onHitTimer(L2PcInstance.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.java:182) at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableStat.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(PlayableStat.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(L2PcInstance.java:7749) at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackable.java:560) at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387) at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2MonsterInstance.java:193) at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStatus.java:151) at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus.java:29) at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.java: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:3892) at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.onHitTimer(L2PcInstance.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.java:182) at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableStat.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(PlayableStat.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(L2PcInstance.java:7749) at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackable.java:560) at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387) at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2MonsterInstance.java:193) at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStatus.java:151) at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus.java:29) at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.java: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:3892) at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.onHitTimer(L2PcInstance.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.java:182) at net.sf.l2j.gameserver.model.actor.stat.PlayableStat.addExp(PlayableStat.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(PlayableStat.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(L2PcInstance.java:7749) at net.sf.l2j.gameserver.model.L2Attackable.calculateRewards(L2Attackable.java:560) at net.sf.l2j.gameserver.model.L2Attackable.doDie(L2Attackable.java:387) at net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance.doDie(L2MonsterInstance.java:193) at net.sf.l2j.gameserver.model.actor.status.CharStatus.reduceHp(CharStatus.java:151) at net.sf.l2j.gameserver.model.actor.status.NpcStatus.reduceHp(NpcStatus.java:29) at net.sf.l2j.gameserver.model.L2Character.reduceCurrentHp(L2Character.java: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:3892) at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.onHitTimer(L2PcInstance.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)