Community Server gone?

I'm fairly new to the game, been playing for a couple weeks on Xbox ONE.

Was playing on a Community Server called something like "|genesis|". You start off pretty well armed and had limited zombies! which was a huge plus for me, not every city is packed with zombies, it has that empty 28 days later feeling, with occasional small packs.

Now the Server is gone and I'm not sure why. I think it still shows up in my favorites list as a code (as if the servers restarting). But I'm pretty bummed out. To me this was much better than the vanilla experience.

Is the server gone for good?