Error 21920351: Condition descriptor is not valid for condition.

The condition descriptor ID specified in the ConditionDescriptor.Name is not valid for item condition specified in the ConditionID field. At this time, condition descriptors should only be used for Non-Sport Trading Card Singles (183050), CCG Individual Cards (183454), and Sports Trading Card Singles (261328) categories, and only if the condition ID is set to 2750 (Graded) or 4000 (Ungraded).