Thanks for contacting us and choosing our product!
We have just checked your site and see you don’t set Role to allow Header can edit with Elementor: https://prnt.sc/1qe507p
(We have just changed it for you)
then we can easy to edit Header with Elementor: https://prnt.sc/1qe50ja
and it’s working fine now: https://prnt.sc/1qe512q
You need to to similar with Footer.
Please read document carefully for more detail: https://document.harutheme.com/frames/
(section 9, 10)
If you haven’t customized much data you should reset database then do again to fix the issue layout break.
Hope this helps!