Can't find KDE community from lemmy.ml server - eviltoast

I joined the LemmyRS server but I’d like to subscribe to the KDE & Plasma users community which is created on the Lemmy.ml server.

However as you can see in the search URL I linked I can’t find it even though I selected All communities, not only Local ones. Even searching for the full community name !kde@lemmy.ml as described in the KDE & Plasma users’s description leads to no result

You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !kde@lemmy.ml

So how can I subscribe to this community please? Can this issue be fixed on this server? Registrations on Lemmy.ml are closed now…

Thanks for your answer