Problem with categories and Form

[Anton Trushin]

Hello. Faced such problems.
I used the "Import-Export Categories" plugin. I set up a form for adding ads and I have this situation. The fields that I entered in the form are not displayed on the "Add ad" page, and fields in subcategories are not inherited.
Screenshots attached.

I also ran into a problem when adding a new category. The system writes that the category with such a key is in the trash box, while the trash is empty.

Tell me please, what could be the problem?