Cause: Forms was trying to convert an old-style LOV into an LOV based on a record group. However, the old-style LOV text was not in the Forms TABLE.COLUMN, so the LOV could not be converted (a valid SELECT statement could not be constructed).
Action: Old-style LOVs are obsolete in this version of Forms, and this LOV could not be upgraded. You should manually migrate this LOV to an LOV based on a record group.