@Jonas I believe that is the error you would get if you're not logged in. You should be redirected to the login though. Could you check if it works in a private browsing window? In case the issue is that you have to clear cookies or somesuch from your main Firefox profile.
I'll gladly take whatever art momentum I've found, especially if it involves capybaras and puns.
Been working on this LEGO Moominhouse for a long time and now it's finally up on LEGO Ideas for the chance of it becoming an official LEGO set! Freddy charged me quite a few treats for the photo.
Link to the LEGO Ideas page: https://ideas.lego.com/projects/85bc1974-13d7-4145-9ec3-7376f8e1c7be