Difficulty to Expand Existing Model to Include Loop Diagrams

Hello,

I have access to a model that works perfectly for LO diagrams. When I try to use it for NLO processes, I receive the following output.

MG5_aMC>import model DipoleMomentMid_UFO
INFO: Change particles name to pass to MG5 convention
Kept definitions of multiparticles p / j / l+ / l- / vl / vl~ unchanged
Defined multiparticle all = g a ve vm vt ve~ vm~ vt~ u c t d s b u~ c~ t~ d~ s~ b~ z w+ h w- e- mu- ta- e+ mu+ ta+
MG5_aMC>generate p p > h > ta+ ta- a [QCD]
The current model DipoleMomentMid_UFO does not allow to generate loop corrections of type ['QCD'].
Command "generate p p > h > ta+ ta- a [QCD]" interrupted with error:
InvalidCmd : The model DipoleMomentMid_UFO cannot handle loop processes
MG5_aMC>generate p p > ta+ ta- a [QCD]
The current model DipoleMomentMid_UFO does not allow to generate loop corrections of type ['QCD'].
Command "generate p p > ta+ ta- a [QCD]" interrupted with error:
InvalidCmd : The model DipoleMomentMid_UFO cannot handle loop processes

The authors of the model are not available to make modifications. How difficult would it be to expand the model to handle loop processes? Is this something simple or would it be tough even for an expert?

I lack the experience with MadGraph to know how to approach this problem. Please let me know if it is advisable to proceed with such a modification.

Best,
Braden