java.lang.NullPointerException
        at net.sf.l2j.gameserver.model.L2World.getGeoInfoNearestFloor(L2World.ja
va:714)
        at net.sf.l2j.gameserver.model.actor.position.ObjectPosition.getZ(Object
Position.java:135)
        at net.sf.l2j.gameserver.model.L2Object.getZ(L2Object.java:118)
        at net.sf.l2j.gameserver.util.Util.checkIfInRange(Util.java:167)
        at net.sf.l2j.gameserver.model.actor.knownlist.ObjectKnownList.addKnownO
bject(ObjectKnownList.java:64)
        at net.sf.l2j.gameserver.model.actor.knownlist.CharKnownList.addKnownObj
ect(CharKnownList.java:34)
        at net.sf.l2j.gameserver.model.L2World.addVisibleObject(L2World.java:370
)
        at net.sf.l2j.gameserver.model.L2Object.spawnMe(L2Object.java:287)
        at net.sf.l2j.gameserver.clientpackets.EnterWorld.runImpl(EnterWorld.jav
a:138)
        at net.sf.l2j.gameserver.clientpackets.ClientBasePacket.run(ClientBasePa
cket.java:59)
        at net.sf.l2j.gameserver.Connection.addReceivedMsg(Connection.java:97)
        at net.sf.l2j.gameserver.SelectorThread.parse(SelectorThread.java:513)
        at net.sf.l2j.gameserver.SelectorThread.readData(SelectorThread.java:440
)
        at net.sf.l2j.gameserver.SelectorThread.run(SelectorThread.java:295)