Inventory Error...

[Mortow]

Anyone know what could be causing an Inventory error in World.exe? It points to a specific item on a specific character and I have looked for the item. It is in his 6th bag slot of the 17th bank slot. Other characters have this item (a custom item btw) and do not throw errors. I have even placed the item in the same bank slot on one of my characters with no error message.

World.exe shows the following:

[Error] Inventory::_PutItem: Invalid slot_id specified (-1) with parent slot id (-1)

[Error] Warning: Invalid slot_id for inventory item in inventory: name=Toom, acctid=121, item_id=188740, slot_id=-1

Thanks.