Photofocus Pro / Licencse renew and CSS for Header

Hello, I urgently need help with the following problems: The theme can no longer be updated (PhotoFocus Pro). When I bought the theme, we first built the site on a system domain (kristinakraft-so64f15yi3.live-website.com/) and then went online on the https://kristinakraft.de/. Since then there have been problems. If I renew the licence now, will it work again? Or do I have to buy a new licence? Under no circumstances should errors occur on the site because of the new licence key. On these pages: https://kristinakraft.de/yoga-pyjama-club/ https://kristinakraft.de/moingiorno/ I have hidden the menu using CSS. Unfortunately, there is a border above the header on all pages, which I simply can't get rid of with CSS. However, it is very important that the header ends at the top. Please help urgently for both topics.