Merging two models

Hi,

I am trying to run an event where the standard model like higgs in the MSSM decays into two photons. For this, I am using the alpha code written here https://code.launchpad.net/~maddevelopers/mg5amcnlo/plugin_model to merge the heft model with the mssm model. But when I run the code and enter the command "add model heft --output=new_model" after importing mssm, it gives me the following error:

"INFO: The two model defines the parameter 'MH'
      the original model for MASS :[37]
      the plugin for MASS :[25]
      We will rename the one from the plugin to MH__1
INFO: The two model defines the block 'MASS' with id '[25]' with different parameter name 'MH__1', 'MH01'
     We will merge those two parameters in a single one
INFO: The two model defines the block 'MASS' with id '[15]' with different parameter name 'MTA', 'Mta'
     We will merge those two parameters in a single one
INFO: The two model defines the parameter 'WH'
      the original model for DECAY :[37]
      the plugin for DECAY :[25]
      We will rename the one from the plugin to WH__1
INFO: The two model defines the block 'DECAY' with id '[25]' with different parameter name 'WH__1', 'WH01'
     We will merge those two parameters in a single one
WARNING: The particle name 'ghA' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghA__1'
WARNING: The particle name 'ghA~' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghA~__1'
WARNING: The particle name 'ghZ' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghZ__1'
WARNING: The particle name 'ghZ~' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghZ~__1'
WARNING: The particle name 'ghWp' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghWp__1'
WARNING: The particle name 'ghWp~' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghWp~__1'
WARNING: The particle name 'ghWm' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghWm__1'
WARNING: The particle name 'ghWm~' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghWm~__1'
WARNING: The particle name 'ghG' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghG__1'
WARNING: The particle name 'ghG~' is present in both model with different pdg code
WARNING: The particle coming from the plug-in model will be rename to 'ghG~__1'
Command "add model heft --output=new_model" interrupted with error:
USRMODERROR : Some inconsistency in the mass assignment in the model
             Mass: MW and MW__1
             conflict name {'MH__1': 'MH01', 'CKM1x1': 'CKM1x1__1', 'ee': 'ee__1', 'sw': 'sw__1', 'MH': 'MH01', 'WH': 'WH01', 'WH__1': 'WH01', 'MW': 'MW__1', 'CKM2x2': 'CKM2x2__1', 'MTA': 'Mta', 'cw': 'cw__1', 'CKM3x3': 'CKM3x3__1'}
             pdg_code: 24 24
Please report this bug on https://bugs.launchpad.net/madgraph5
More information is found in 'MG5_debug'.
Please attach this file to your report."

Is there a way to fix this issue without resorting to merging the two models by hand in Feynrules? Thanks.