Inspecting the code in G4PhysListFactory.cc in 4.9.6.p01 it appears that there is an inconsistency between the reported available hadronic physics lists and the ones actually available to the user. It appears "ShieldingLEND" is a valid name, but it is not in the list of available names (listnames_hadr). Likewise, QGSP is in the list, but is not actually available. Presumably a fix would be to remove "QGSP" from listnames_hadr and instead add "ShieldingLEND".
Hello, Thanks for pointing out to the problem. It is already fixed for the development version and will be available with next public versions of Geant4. VI
See comment by Vladimir