Architecture Hub - Header or footer not visible
If your header or footer is not displaying on the page after importing a demo, this article may help you.
1- Open the page where the problem exists with Elementor.
2- Go to Elementor Page Settings
3- You will see that no header is defined for the page from the Page Header Options tab. Here you need to define a header and save your changes, then the header will be displayed on your page. You can do the same for your footer.