For example a search for site:tixati.com reply on Duckduckgo yields many pages with reply forms like:
https://forum.tixati.com/support/6947?reply

The reply pages should have noindex metatag to stop their indexation. Probably the wiki pages need this treatment too, I didn't check.

Thank you! Added in https://supersimpleserver.com/news  version 1.22

Hi, I can't open the link, what should I do?

What does it say when you launch cmd.exe and run ping supersimpleserver.com (press ENTER)?