error handling client message [C] 21 RequestBypassToServer
java.lang.ExceptionInInitializerError
        at net.sf.l2j.gameserver.serverpackets.MultiSellList.runImpl(MultiSellLi
st.java:100)
        at net.sf.l2j.gameserver.serverpackets.ServerBasePacket.setConnection(Se
rverBasePacket.java:112)
        at net.sf.l2j.gameserver.Connection.sendPacket(Connection.java:145)
        at net.sf.l2j.gameserver.model.actor.instance.L2PcInstance.sendPacket(L2
PcInstance.java:3106)
        at net.sf.l2j.gameserver.model.actor.instance.L2MerchantInstance.onBypas
sFeedback(L2MerchantInstance.java:183)
        at net.sf.l2j.gameserver.clientpackets.RequestBypassToServer.runImpl(Req
uestBypassToServer.java:109)
        at net.sf.l2j.gameserver.clientpackets.ClientBasePacket.run(ClientBasePa
cket.java:59)
        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)
Caused by: java.lang.NumberFormatException: For input string: "sub1"
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at net.sf.l2j.gameserver.model.L2Multisell.parse(L2Multisell.java:276)
        at net.sf.l2j.gameserver.model.L2Multisell.parseData(L2Multisell.java:61
)
        at net.sf.l2j.gameserver.model.L2Multisell.<init>(L2Multisell.java:45)
        at net.sf.l2j.gameserver.model.L2Multisell.<clinit>(L2Multisell.java:27)

        ... 10 more