Congratulations!
As far as I know, categories are not imported into Khorosop, they must be created in Khorosop.
Most often, products may not be exported due to 2 errors:
1) The template
https://prnt.sc/7CZuLtHqq5sh is not selected in the category
2) In the goods template on Khorozhop, the filters are not checked with the goods that are transferred
3) There are no technical links in the filters for products in the Box
https://i.imgur.com/fE8GbT2.jpg