Moved from 504 to BGG Bugs
But....but....it's not that funny as a BGG bug! You ruined my joke.
OK. If you are going to ruin the joke, we might was well fix the problem. I've seen many of these. It looks like maybe Miniature Market changed the URLs of their game pages? It's all Miniature Market ads that do it, and the games are in the MM website if you search for them from the MM website. I'm not sure it is a BGG bug. I would first guess it is a MM bug, or they need to update a database of links they provide to BGG.