Model exporting with editor

Hello, i was recently trying to add some models to Heroes 5 through Zahar07 metod. I managed to set up editor and model for exporting, but the final step didnt come out. I was supposed to get a series of logs regarding the writing of all the related files, but instead i got this:



I also tried to use Psatkha testing model (latnik) for it, in case my model caused it. Skeleton tab is clear.

Is there some way to fix it?