I have opened a support ticket - not sure if it should be done here or via that route.
Community is inactive and the mod has a large number of inactive communities set up.
You will see the user Margot Robbie and myself are fans - if anyone sees this post and would be interested in helping, I am very much wanting to collaborate!
Edit - owner says they have plans for it now.
Hi there! Looks like you linked to a Lemmy community using a URL instead of its name, which doesn’t work well for people on different instances. Try fixing it like this: !barbie@lemmy.world