@leocg Ok, but this only happens in Opera. When I search for the same page on Google for example this doesn't appear.
I've also just changed my DNS following this tutorial (Windows 11).
https://www.pdq.com/blog/change-dns-server-settings-in-windows/

Hello,
Whenever I get an underage or innapropriate text in a website or on the screen of the opera browser (even subtitles). I get this white screen with this text.

Is there any way I could fix this?