The DEMO version only includes 4 pages:
http://ollaexpressapresion.com.es
http://ollaexpressapresion.com.es/comparativa-de-las-mejores-ollas-express.html
http://ollaexpressapresion.com.es/marca.html
http://ollaexpressapresion.com.es/ollas-express-monix.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