Not sure if it was purposefully taken away or if someone stole it, didn't have time to check, but the beacon at spawn is currently missing. If it was taken, please replace it, if it's just... missing (?) we need to replace it.
It's part of the griefing - rolling it back.
Oh no! Stupid griefers. I must have missed that. How far back are you rolling it? I built a zombie XP farm last night... Or had started to, and was almost done, actually.
I just did a rollback of TNT damage, so you should be okay