Page not found (error 404)

The page http://www.jayanti.altervista.org/js/Giugno-Luglio%25202020/files/basic-html/index.html was not found on this server.

This can be due to:

Pay attetion to UPPER and LOWER cases
http://site.altervista.org/Page.html is different from http://site.altervista.org/page.html