The DEMO version only includes 4 pages:
http://repetidor-wifi.es
http://repetidor-wifi.es/index_php.html
http://repetidor-wifi.es/repetidor.wifi.configuracion.html
http://repetidor-wifi.es/repetidor.wifi.instalacion.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