There will be an unfortunate purge of inactive players by the first of july, you can then join using the link or adding the Btag of one of the community leaders or just whispering one of them ingame ^ _ ^
I’ll post the link below, but it probably won’t let you join due to us being at 1k members at the moment.
Edit : you can also join Zen Horde 2 which is basically a waiting room for people to join Zen Horde, it autoaccepts applications and has plenty of vacant spots, a reminder and a link will again be posted in that community 