The DEMO version only includes 4 pages:
http://gregoriodesign.com
http://gregoriodesign.com/kontakty.html
http://gregoriodesign.com/category/blokchejn.html
http://gregoriodesign.com/category/obmenniki.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
Go back to the index page