The DEMO version only includes 4 pages:
http://jusos-versmold.de
http://jusos-versmold.de/index_php.html
http://jusos-versmold.de/wer-wir-sind-und-was-wir-wollen.html
http://jusos-versmold.de/termine/show.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