Butterfly Create case from Geometry error

I am trying to modeling a simple hvac case in butterfly. I don’t proceeding because i have encountered this error:

Can you help me?

prova_hvac.3dm (77.8 KB)
prova_hvac.gh (15.4 KB)

Did you recently update the butterfly libraries? I guess this import error is happening because you’re using an old userobject with a newer version of butterfly.

thanks @mostapha, but I don’t understand. I updated butterfly and, after restarting rhino, I started to create the case starting from scratch … what should I check?

Ok, I have updated the userobject also… function it!