java.lang.NullPointerException
        at net.sf.l2j.gameserver.Olympiad.getSpectators(Olympiad.java:842)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.updateEffectIcons(L2PcInstance.java:3668)
        at net.sf.l2j.gameserver.model.L2Character.updateEffectIcons(L2Character.java:2830)
        at net.sf.l2j.gameserver.model.L2Character.removeEffect(L2Character.java:2435)
        at net.sf.l2j.gameserver.model.L2Effect.stopEffectTask(L2Effect.java:349)
        at net.sf.l2j.gameserver.model.L2Effect.scheduleEffect(L2Effect.java:447)
        at net.sf.l2j.gameserver.model.L2Effect$EffectTask.run(L2Effect.java:145)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:207)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
        at java.lang.Thread.run(Thread.java:619)