Missing page

When using Abrowser 88 on GNU/Linux Trisquel 8 and encountering an HTTPS page with certificate issues, Abrowser shows a warning page (see attached snapshot). However, if I click on the link "Obtain more information..." of this warning page, a new tab opens with the address https://trisquel.info/wiki/connection-not-secure , "Page does not exist". The Trisquel website is suppossed to have a page at this address in order to provide more information.