Major Design Issues after Upgrade to GP Premium

Hej,

I am using Elementor Pro and was using "Header Footer Elementor"Plugin. Now I upgraded to GP Premium to use the Themes Navigation and optimize the Header. Now the Design of the site is really messed up.

1. I disables the Plugin and enables Premium. Next time I saw the site it looks a boxed Layout and not full width. I didn't change anything just installed GP Premium and disabled the Plugin. When I disable GP Premium and enable the Plugin the gab is still there No matter with Page Template I am using. I really want my Full-Width back =(

2. The Default Navigation is not working at all. It looks like a list without any styling.

3. Scroll to up position is now under the Page, looks also if there is styling missing.

Please help.