error when running with a script

Hi guys,

I tried to do some NLO runs using a script and doing ./bin/aMCatNLO script

where my script starts like this:

launch
  set ctg 0.1e-08
  set cft 2.0

launch
  set cft -2.0

The first run finishes but the second crashes saying:

OSError : [Errno 17] File exists: '/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/Events/run_13'

I attach below the debug file.

Thanks,

Eleni

#************************************************************
#* MadGraph5_aMC@NLO *
#* *
#* * * *
#* * * * * *
#* * * * * 5 * * * * *
#* * * * * *
#* * * *
#* *
#* *
#* VERSION 5.2.3.0.beta *
#* *
#* The MadGraph5_aMC@NLO Development Team - Find us at *
#* https://server06.fynu.ucl.ac.be/projects/madgraph *
#* and *
#* http://amcatnlo.cern.ch *
#* *
#************************************************************
#* *
#* Command File for aMCatNLO *
#* *
#* run as ./bin/aMCatNLO.py filename *
#* *
#************************************************************
launch
launch
Traceback (most recent call last):
  File "/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/bin/internal/extended_cmd.py", line 879, in onecmd
    return self.onecmd_orig(line, **opt)
  File "/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/bin/internal/extended_cmd.py", line 872, in onecmd_orig
    return func(arg, **opt)
  File "/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/bin/internal/extended_cmd.py", line 654, in do_import
    self.import_command_file(args[1])
  File "/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/bin/internal/extended_cmd.py", line 1042, in import_command_file
    self.exec_cmd(line, precmd=True)
  File "/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/bin/internal/extended_cmd.py", line 919, in exec_cmd
    stop = Cmd.onecmd_orig(current_interface, line, **opt)
  File "/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/bin/internal/extended_cmd.py", line 872, in onecmd_orig
    return func(arg, **opt)
  File "/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/bin/internal/amcatnlo_run_interface.py", line 1200, in do_launch
    self.compile(mode, options)
  File "/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/bin/internal/amcatnlo_run_interface.py", line 3669, in compile
    os.mkdir(pjoin(self.me_dir, 'Events', self.run_name))
OSError: [Errno 17] File exists: '/nfs/home/fynu/evryonidou/2.3/ttZ_nlo/Events/run_13'