The BracketByPlane definition point PG does not match the BracketByPlane PG.
The defining points needed for the BracketByPlane plate system have a different Permission Group (PG) than that of the BracketByPlane plate system. The defining points need to have the same permission group as the plate system.
You cannot manipulate the object itself or other objects related to it.
What You Should Do
Ask your database administrator to back up the model.
In the software, click Tools > Custom Commands, and run the Clean Database custom command.
Select the object(s) to be repaired.
Click Clean Now.
Re-run the Check Database Integrity custom command and the DBIntegrity report.
If the object is still posted, contact Smart 3D Support.