Page not found (error 404)

The page http://iwannabethatgirl.altervista.org/category/event/?doing_wp_cron=1582934690.4051818847656250000000&paged=2 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