The DEMO version only includes 4 pages:
http://radionumerocritico.cl
http://radionumerocritico.cl/2022/07/inteligencia-artificial-sera-o-assunto-da-decada.html
http://radionumerocritico.cl/author/blogdaradio.html
http://radionumerocritico.cl/category/publicacoes.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