Many (DEV-)Servers got deleted - Help!

[firefighter]

Hello,

I don't know whom to ask so I ask here. I got a problem: mine and many other playerworlds arn't in the server list anymore so I can't connect. Also Zeron gots deleted... We invested so much work and time in it and now everything is gone
Can someone of the higher staff please help to get at least Zeron back? It was one of the most progressed dev-servers and gots deleted without notifying us (the staff team and me) before so we didn't have a chance to make a backup of all the good stuff.