Incorrect or split categories in the Budgie menu

Hello, In “menulibre” I can see that I have exactly 9 applications in the “Accessories” category.
But in the Budgie menu, these 9 applications are divided into 3 categories: 2 categories called “Accessories” (Zubehör), one called “Other” (Weitere).
How can I combine these distributed links into one category in the Budgie menu?

Here the next:

And the last: