The DEMO version only includes 4 pages:
http://amis-de-paulilles.fr
http://amis-de-paulilles.fr/index_php/productions-usine-dynamite.html
http://amis-de-paulilles.fr/index_php/administration-usine.html
http://amis-de-paulilles.fr/index_php/administration-usine/patronat.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.
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