The DEMO version only includes 4 pages:
https://k2erp.kz/k2project
https://k2erp.kz/k2project/K2Project/index_option-com_content-view-category-layout-blog-id-55-Itemid-76.html
https://k2erp.kz/k2project/K2Project/index_option-com_content-view-article-id-202-Itemid-77.html
https://k2erp.kz/k2project/K2Project/index_option-com_content-view-article-id-201-Itemid-78.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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