[Закрытые] Product Categories disappeared

Background of the issue:
I am trying to manage product categories, specifically ensuring that Fragranze & Follie has 'Man' and 'Donna' as child categories, that disappeared, like some oher categories. I attempted the procedures as informed in other points but did not achieve the desired outcome.

Symptoms:
Some product categories are summarized incorrectly, and the association with languages (idioms) is not working as expected. The expected child categories are not appearing, even Parent categories

Questions:
Why are some product categories summarized incorrectly?
How can I ensure the correct association of product categories with languages?
Why they disappeared?