The DEMO version only includes 4 pages:
http://muenkel-frisoere.de
http://muenkel-frisoere.de/index_php.html
http://muenkel-frisoere.de/index_php/team.html
http://muenkel-frisoere.de/index_php/oeffnungszeiten.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