Undo - Receipt - Lot no Problem

Hi All, Have posted one purchase order (only receipt). When the users are trying to “undo Receipt”, system throwing an error message like this. “Lot No Inforamtion does not exist”. But when I look into the Item eldger entry table, the lot no info exists. what could be the reason for this?

I suspect the error message is referring to records in table 6505 - Lot No. Information, not table 32 - Item Ledger Entry.