Header is not always on the same place

Hi all

I have WordPress with Elementor Pro 3.11.3 and Woocommerce 7.4.1.

I have a problem with the header:
When i use the menu and i click “All products, Kasse, Warenkorb, 3D Puzzle – Metal, 3D Puzzle – Wood, Rubiks Cubes”, the header and the menu doesnt move. Its for every page the same.

If i click on “Mein Konto” which is the my account page from woocommerce, you can see that the whole page moves a bit to the right.

And i cannot explain that:
I created a template Header/Menu with Elementor pro and assigned it to every page the same way. Every page have the same settings (Boxed content etc.), so i cannot see any difference between the Page “Mein Konto” and the other ones.

Could someone maybe help me to find the issue?

Strange is, if i remove all my products to the trash, the page “Mein Konto” doesnt have this issue.

Furthermore it added to every side on top of the logo a blue, which i dont know either how this happened.

Thank you very much for your help.

Kind regards

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