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: !adhd@lemmy.world
The ! link given by the bot opens the community on the instance of the viewer.
It appears the same to you as you are on the same instance as the community, but for instance in my case it opened reddthat.com/c/adhd@lemmy.world, better than the first URL