I get a lot of this too, Midschoolfool's images were always visible, even to guests. Now this…

The company I hosted them with (imgur) fell out with Kier Starmer. Basically under their new spying laws they wanted Imgur to sign stuff and pay fines etc. So imgur told them to F off and blocked the entire UK.
You can still see the pics with a VPN. If you are on a PC there is a browser called Opera that has a free one. Other than that though? they are pretty much gone now.