FBDI Import Error (Infra_0305)

Hello, 

While transferring data to the 3d experience platform, we are receiving the infra_0305 error in the image I sent in the attachment. We could not find the source of the problem. Is there a database-based problem? 

We cleaned the relevant data with CATDUA. However, this problem occurred in products with many components. We could not find a problem when we tried to remove them one by one.