Attach Block error message if DMRG failed
Attach Block error message if DMRG failed

gkc1000/pyscf,gkc1000/pyscf,sunqm/pyscf,gkc1000/pyscf,gkc1000/pyscf,sunqm/pyscf,sunqm/pyscf,gkc1000/pyscf,sunqm/pyscf