Elementor Header & Footer Builder crashes since Update

Hi there,

I updated several plugins and after my website was down.
I found out that Header & Footer Builder Plugin was the problem. If I deactivate it, my website is on air, but footer and header are missing (and got menu issues).

Current Versions:

Elementor Pro: 3.7.1
Elementor: 3.6.5
Elementor Header & Footer Builder: 1.6.11

Does anyone has a quick solution?

Thanks and regards from cologne!

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