Page not found (error 404)

The page http://tue.altervista.org/category/immersioni/page/2/?doing_wp_cron=1611042937.4280130863189697265625 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