Error with Pmutscan

[EPSZ300]

I am trying to find stabilizing mutations on a cytochrome tetramer(with 4 identical chains) using a mutants file. I ran a successful test when using one of the chains with and without a mutants file. Whenever I try to perform the pmutscan analysis with the tetramer structure, I get the following error:

[FILE]: src/core/conformation/Conformation.hh [LINE]: 509 [START_MESSAGE] [ ERROR ] UtilityExitException ERROR: Error in core::conformation::Conformation::residue(): The sequence position requested was 0. Pose numbering starts at 1.
I used this command :
/opt/apps/rosetta/3.13/bin/pmut_scan_parallel.hdf5.linuxgccrelease -database $ROSETTA3DB -s $PDB -ex1 -ex2 -extrachi_cutoff 1 -use_input_sc -ignore_unrecognized_res -no_his_his_pairE -multi_cool_annealer 10 -mute basic core -mutants_list $Mut_file
I used the clean_pdb_keep_ligand.py tool to get the tetramer ready for pmutscan
Every file I used is included in the 1.zip
1.zip