Can't export to Lackey ?

I'm trying to export a set to Lackey, with the Lackey Exporter found in this post : link
But whenever I try to export, I have an error in MSE2 with this message :

card has no member "level_1 text"
   in function paragraph_one
   in function normal_scripts
   in function write_normal
   in function write_card

There is text in every position possible on the cards I try to export, what could be the problem ?
Is this exporter not working anymore ? The post was from February of 2018.
Thank you !