Item Drop Bug..Help me..

[unpoppo]

Port Lux Chaoslamp i buy logout.
and Forcium,AmpOsmiumDrop..

/var/log/cabal/WorldSvr_08_01.log

[Fri Jan 21 2011 17:18:28.542192 118246288]: [##ERROR##] CheckInvenItemSlotByServiceType(): CharacterIdx(104), sloatIdx(128)
[Fri Jan 21 2011 17:18:28.542237 118246288]: [##ERROR##] 'OnCSCItemBuyings' fail (Proc/Inventory.cpp:3273)
[Fri Jan 21 2011 17:18:28.542246 118246288]: [##ERROR##] UsrMap Fail : MainCmd(161) Ret(290CC9:41:3273) Addr(xxx.xxx.xxx.xx)


[Fri Jan 21 2011 00:20:10.472642 131976080]: [##ERROR##] CheckInvenItemSlotByServiceType(): CharacterIdx(120), sloatIdx(128)
[Fri Jan 21 2011 00:20:10.472730 131976080]: [##ERROR##] 'OnCSCItemLooting' fail (Proc/Inventory.cpp:2126)
[Fri Jan 21 2011 00:20:10.472741 131976080]: [##ERROR##] UsrMap Fail : MainCmd(153) Ret(29084E:41:2126) Addr(xxx.xxx.xxx.xxx)

Why this bug??
Sorry My English.Thanks

Premium Inventory Page(3ed,4th) Item bug..
help.. :S

[MentaL]