[01.03.13 00:51:12:516] ERROR threading.RunnableImpl: Exception: RunnableImpl.run(): ld.gameserver.model.instances.MonsterInstance cannot be cast to ld.gameserver.model.Player
java.lang.ClassCastException: ld.gameserver.model.instances.MonsterInstance cannot be cast to ld.gameserver.model.Player
at ld.gameserver.skills.effects.EffectGiantForceAura.onActionTime(Unknown Source)
at ld.gameserver.model.Effect.runImpl(Unknown Source)
at ld.commons.threading.RunnableImpl.run(Unknown Source)
at ld.commons.threading.SteppingRunnableQueueManager$SteppingScheduledFuture.run(Unknown Source)
at ld.commons.threading.SteppingRunnableQueueManager.run(Unknown Source)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)
at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)