Admin and Site Enhancement

I tried to use the plugin Admin and Site Enhancements in wordpress using elementor ,but when I tried to configure this plugin I got a screen that on the right sight of the screen was blank. So the column in the left side was present (in dutch) but a blank screen on the right side so there was no possibility to choose any option. . So my question is; what went wrong or why is it not working like it should?

The page I need help with: [log in to see the link]