The7 Theme - Doesnt display Category Pages

Hey, yesterday I did a major Wordpress update, updated 30 plugins and also switched to the The7 Theme. Minor adjustments of coloring are done, but now I need your help with an issue in the menu list. The menu shows completely, Page and Direct link menu entries are also showing. But all Category entries dont show up.

Here is an example:
[Category Page Example]

The cateregories itself are there, and the posts and pages are also assigned to the categories. But still I get the 404 error.

Any ideas?



Contact with your purchase item author @Dream-Theme right here as a comments

hope they will helped!