Element broker object has no associated drawing view.
This element broker object is not related to a drawing view. Each element broker object must be related to a drawing view.
Data in the model database is incorrect or deleted.
An error occurs when deleting a drawing component.
An error occurs when creating or deleting a document or drawing view.
An error occurs during database migration.
This record represents an object in the model database that is no longer accessible. This object wastes storage space until it is deleted.
What You Should Do
Run the Clean Database custom command to delete this object.