problem of loop induced process

I was running gg>h through loop induced process when I encountered this problem.
MG5_aMC>generate g g > h aS=2 aEW=1 [QCD]
change syntax aEW=1 to QED^2=2 to correspond to UFO model convention
Interpreting 'QED^2=2' as 'QED^2<=2'
change syntax aS=2 to QCD^2=4 to correspond to UFO model convention
Interpreting 'QCD^2=4' as 'QCD^2<=4'
---------------------------------------------------------------------------
 No Born diagrams found. Now switching to the loop-induced mode.
 Please also cite ref. 'arXiv:1507.00020' when using results from this mode.
---------------------------------------------------------------------------
change syntax aEW=1 to QED^2=2 to correspond to UFO model convention
Interpreting 'QED^2=2' as 'QED^2<=2'
change syntax aS=2 to QCD^2=4 to correspond to UFO model convention
Interpreting 'QCD^2=4' as 'QCD^2<=4'
1 processes with 4 diagrams generated in 0.094 s
Total: 1 processes with 4 diagrams
tutorial_aMCatNLO:
 You have just generated a new process.
 You can find more information on supported syntax by using:
 MG_aMC>help generate
 To list all defined processes, type
 MG_aMC>display processes

 If you want to know more about particles and multiparticles present,
 write
 MG_aMC>display particles
 MG_aMC>display multiparticles

 If you want to add a second process, use the add process command:
 MG_aMC>add process p p > e+ e- [QCD] @2

 At this stage you can export your processes.
 This is done simply by typing:
 MG_aMC>output MY_FIRST_AMCATNLO_RUN

MG5_aMC>ouutput ggh-loop
Command "ouutput" not recognized, please try again
MG5_aMC>output ggh-loop
INFO: initialize a new directory: ggh-loop
INFO: remove old information in ggh-loop
INFO: Organizing processes into subprocess groups
INFO: Generating Helas calls for process: g g > h WEIGHTED<=4 [ noborn = QCD ] QCD^2<=4 QED^2<=2
INFO: Processing color information for loop process: g g > h [ noborn = QCD ] QCD^2<=4 QED^2<=2
INFO: Creating color matrix loop process: g g > h WEIGHTED<=4 [ noborn = QCD ] QCD^2<=4 QED^2<=2
INFO: Creating files in directory /home/zhaowei/Downloads/MG5_aMC_v3.3.1/MG5_aMC_v3_3_1/ggh-loop/SubProcesses/PV0_0_1_gg_h
INFO: Computing diagram color coefficients
INFO: Drawing loop Feynman diagrams for Process: g g > h WEIGHTED<=4 [ noborn = QCD ] QCD^2<=4 QED^2<=2
INFO: Creating files in directory P0_gg_h
INFO: Generating Feynman diagrams for Process: g g > h WEIGHTED<=4 [ noborn = QCD ] QCD^2<=4 QED^2<=2
Command "output ggh-loop" interrupted with error:
TypeError : '>' not supported between instances of 'int' and 'str'
Please report this bug on https://bugs.launchpad.net/mg5amcnlo
More information is found in 'MG5_debug'.
Please attach this file to your report.