The DEMO version only includes 4 pages:
http://patatedestenebres.com
http://patatedestenebres.com/embed/RJpYNRbE_cover-1-preloadContent-metadata-hd-1_ext_iframe.html
http://patatedestenebres.com/likes/master_ver-20220105_ext_iframe.html
http://patatedestenebres.com/jeux-et-idees.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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