I will pass that along but I don't think this is the problem. With missing macros, the object still shows up. It just gives errors. He is getting a missing object.
There were some macros in the 70 library at ArchiCAD Library 70\Object Library 70\MACROS 70\D-W Macros 70\Door Panels 70\Bifold Door Panels 70.
He probably just needs that macro.
Cheers,
Link.