MCatNLO for HERWIG6 fails

Hi, I am currently generating p p > j j at NLO. When compiling MCatNLO for HERWIG6 the l get the following error:

/Users/pp_jj_NLO/MCatNLO/RUN_HERWIG6_3/shower.sh: line 44: 5645 Abort trap: 6 ./MCATNLO_$SHOWER\_EXE < MCATNLO_$SHOWER\_input > mcatnlo_run.log 2>&1
mv: rename events.lhe.hep to events.hep: No such file or directory
gzip: can't stat: events.hep (events.hep): No such file or directory
INFO: Idle: 0, Running: 0, Completed: 1 [ 0.62s ]
Error detected in "launch auto --name run_7"

The contents of my debug file is:

Traceback (most recent call last):
  File "/Users/opt/anaconda3/lib/python3.9/shutil.py", line 825, in move
    os.rename(src, real_dst)
FileNotFoundError: [Errno 2] No such file or directory: '/Users//pp_jj_NLO/MCatNLO/RUN_HERWIG6_3/events.hep.gz' -> '/Users/pp_jj_NLO/Events/run_7/events_HERWIG6_0.hep.gz'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/MadGraph5/MG5_aMC_v3_5_0_alpha/madgraph/interface/amcatnlo_run_interface.py", line 4095, in run_mcatnlo
    files.mv(os.path.join(rundir, 'events.%s.gz' % ext), hep_file)
  File "/Users/progs/MadGraph5/MG5_aMC_v3_5_0_alpha/madgraph/iolibs/files.py", line 186, in mv
    shutil.move(path1, path2)
  File "/Users/opt/anaconda3/lib/python3.9/shutil.py", line 845, in move
    copy_function(src, real_dst)
  File "/Users/opt/anaconda3/lib/python3.9/shutil.py", line 444, in copy2
    copyfile(src, dst, follow_symlinks=follow_symlinks)
  File "/Users/opt/anaconda3/lib/python3.9/shutil.py", line 264, in copyfile
    with open(src, 'rb') as fsrc:
FileNotFoundError: [Errno 2] No such file or directory: '/Users/pp_jj_NLO/MCatNLO/RUN_HERWIG6_3/events.hep.gz'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/MadGraph5/MG5_aMC_v3_5_0_alpha/madgraph/interface/extended_cmd.py", line 1544, in onecmd
    return self.onecmd_orig(line, **opt)
  File "/Users/MadGraph5/MG5_aMC_v3_5_0_alpha/madgraph/interface/extended_cmd.py", line 1493, in onecmd_orig
    return func(arg, **opt)
  File "/Users/MadGraph5/MG5_aMC_v3_5_0_alpha/madgraph/interface/amcatnlo_run_interface.py", line 1805, in do_launch
    self.run_mcatnlo(evt_file, options)
  File "/Users/MadGraph5/MG5_aMC_v3_5_0_alpha/madgraph/interface/amcatnlo_run_interface.py", line 4111, in run_mcatnlo
    raise aMCatNLOError('No file has been generated, an error occurred.'+\
madgraph.interface.amcatnlo_run_interface.aMCatNLOError: No file has been generated, an error occurred.

I am running this on macOS 13.2, with XCODE 14, on a MacBook Pro M1 (arm64-architecture).

Does anyone know why this error occurs?