lemmy-federate.com does not accept crazypeople.online communities

In attempt to make !humanrights@crazypeople.online more known, I tried to add it to lemmy-federate.com and was blocked. It basically said there is no account for that instance. I don’t fully grasp how that site works but I think an admin might want to register crazypeople.online on lemmy-federate.com so that the communities are better publicized in the various fedi datasets.