This item has a variation (Parent/Child relationship ASIN). You are trying to list a parent ASIN, but only children can be sent. The matrix parent ASIN is not a real item, so it cannot be used to list.

Solution:

List the item using the correct child ASIN that matches your product.

For help finding the correct ASIN for a variation of a product, please see- Finding Variation Information Using Seller Central's Variation Wizard Tool