PIM Error:You cannot delete a segment with a multiple select list of values display type. (FND-3073)

Summary:

Hello, I am trying to delete an attribute group from the Manage Item Attribute Group task.

The first error says "You cannot delete a segment with a multiple select list of values display type. (FND-3073)
In application 10,010, descriptive flexfield EGO_ITEM_EFF, and context ****, the multiple select list of values segment AAAA cannot be deleted."

When I go to delete the AAAA EFF from **** context code, it gives me the following error: Multirow context should have at least one UniqueKey defined"

How can i delete the attribute group?

Thank you!