SMEFT NLO ttbar - Result collection error

Dear experts,

Here is my MG v3.1.1 setup:

import model SMEFTatNLO-NLO
define p = g u c d s b u~ c~ d~ s~ b~
define j = g u c d s b u~ c~ d~ s~ b~

generate p p > t t~ QCD=2 QED=0 NP=2 NP^2=2 [QCD]

output test_dir
launch
shower=pythia8
done
set nevents 100000
set maxjetflavor 5
set cqq81 -1.0
done

When I run this I get the following error:

INFO: Idle: 0, Running: 8, Completed: 16 [ 51.1s ]
INFO: Idle: 0, Running: 7, Completed: 17 [ 1m 7s ]
INFO: Idle: 0, Running: 6, Completed: 18 [ 1m 8s ]
INFO: Idle: 0, Running: 5, Completed: 19 [ 1m 8s ]
INFO: Idle: 0, Running: 4, Completed: 20 [ 1m 9s ]
INFO: Idle: 0, Running: 3, Completed: 21 [ 1m 10s ]
INFO: Idle: 0, Running: 2, Completed: 22 [ 1m 10s ]
INFO: Idle: 0, Running: 1, Completed: 23 [ 1m 11s ]
INFO: Idle: 0, Running: 0, Completed: 24 [ 1m 13s ]
Error detected in "launch auto "
write debug file /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/run_02_tag_1_debug.log
If you need help with this issue, please, contact us on https://answers.launchpad.net/mg5amcnlo
str : An error occurred during the collection of results.
 Please check the .log files inside the directories which failed:
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_uux_ttx/GF3.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_uux_ttx/GF4.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_ccx_ttx/GF3.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_ccx_ttx/GF4.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_ddx_ttx/GF3.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_ddx_ttx/GF4.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_uxu_ttx/GF3.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_uxu_ttx/GF4.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_cxc_ttx/GF3.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_cxc_ttx/GF4.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_dxd_ttx/GF3.0/log.txt
 /afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/tt_SMEFT_ctq8_m1_QCD_NLO_NP1/SubProcesses/P0_dxd_ttx/GF4.0/log.txt

with the run_02_tag_1_debug.log output:

Traceback (most recent call last):
  File "/afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/madgraph/interface/extended_cmd.py", line 1544, in onecmd
    return self.onecmd_orig(line, **opt)
  File "/afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/madgraph/interface/extended_cmd.py", line 1493, in onecmd_orig
    return func(arg, **opt)
  File "/afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/madgraph/interface/amcatnlo_run_interface.py", line 1780, in do_launch
    evt_file = self.run(mode, options)
  File "/afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/madgraph/interface/amcatnlo_run_interface.py", line 2002, in run
    jobs_to_collect,mint_step,mode,mode_dict[mode],fixed_order=False)
  File "/afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/madgraph/interface/amcatnlo_run_interface.py", line 2252, in collect_the_results
    self.append_the_results(jobs_to_run,integration_step)
  File "/afs/cern.ch/work/p/pverschu/private/TopXSec/MG5_aMC_v3_1_1/madgraph/interface/amcatnlo_run_interface.py", line 2736, in append_the_results
    '\n'.join(error_log)+'\n')
madgraph.interface.amcatnlo_run_interface.aMCatNLOError: An error occurred during the collection of results.

and the final part of SubProcesses/P0_uux_ttx/GF4.0/log.txt:

  COEFFICIENT SINGLE POLE:
        MadFKS: -1.0814846427498473E-006 OLP: -1.0814846427498687E-006
 REAL 1: not keeping split order 1
 REAL 1: keeping split order 2
 REAL 1: keeping split order 3
 REAL 1: not keeping split order 4
 REAL 1: keeping split order 5
 REAL 1: not keeping split order 6
 REAL 3: not keeping split order 1
 REAL 3: keeping split order 2
 REAL 3: keeping split order 3
 REAL 3: not keeping split order 4
 REAL 3: keeping split order 5
 REAL 3: not keeping split order 6
 REAL 2: not keeping split order 1
 REAL 2: keeping split order 2
 REAL 2: keeping split order 3
 REAL 2: not keeping split order 4
 REAL 2: keeping split order 5
 REAL 2: not keeping split order 6
 Fatal error in xmcsubt
           1 -1.3205955376980469E-009
Time in seconds: 1

One note I should make is that when I use the order definition NP^{2}=4 with the generate command and the rest the same I do not get this error.

Thank you for any help.

Cheers,
Pim