Display picture of one of my posts in Koalawalla Woods went missing - eviltoast

I recently just noticed that one of my posts, the one to a petition on Care2, had its display picture from the petition itself get deleted as it was coming up as 404. I have changed it to a direct link to the image on Dingo for now while I’m wondering why I wasn’t even notified of the reason why it was removed.

Edit: Now it looks like it is 404 here as well.