You are running Q-Chem version: 5.2.1
QCSCRATCH /mnt/beegfs/tmpdir should NOT be the same!
unset QCLOCALSCR ...

#
# job setting
#
local host:  compute-3-0.local
current dir: /mnt/beegfs/emonino/CBD_Denis/SF-TDDFT/b3lyp
input file:  AVQZ/CBD_sf_td_b3lyp_avqz.inp
output file: AVQZ/CBD_sf_td_b3lyp_avqz.log
nprocs     : 0
nthreads   : 1
#
# qchem installation setting
#
QC:          /share/apps/common/q-chem/5.2.1
QCAUX:       /share/apps/common/q-chem/5.2.1/qcaux
QCPROG:      /share/apps/common/q-chem/5.2.1/exe/qcprog.exe_s
QCPROG_S:    /share/apps/common/q-chem/5.2.1/exe/qcprog.exe_s
PARALLEL:    -DSERIAL
QCMPI:       seq
#
# qchem directory setting
#
qcrun:       qchem48689
QCSCRATCH:   /mnt/beegfs/tmpdir
QCLOCALSCR:  
QCTMPDIR:    /mnt/beegfs/tmpdir
QCFILEPREF:  /mnt/beegfs/tmpdir/qchem48689
QCSAVEDIR:   
workdirs:    /mnt/beegfs/tmpdir/qchem48689
workdir0:    /mnt/beegfs/tmpdir/qchem48689
partmpdirs =  
#
# parallel setting
#
 invalid QCMPI (seq) option 
QCRSH:           ssh
QCMPI:           seq
QCMPIRUN:        
QCMACHINEFILE:   /mnt/beegfs/tmpdir/qchem48689/hostfile

#
# env setting
#
exported envs:   QC QCAUX QCSCRATCH QCRUNNAME QCFILEPREF QCPROG QCPROG_S GUIFILE