Server cracked and griefed

Server was cracked by LilBliss (had a number at end of name but dont remember it) and someone else, they made some players creative (and me) and griefed spawn, turned blocks to sponges and other random blocks. [server] said that server is going to whitelist and that players that dont leave will be banned. Now I got kicked and it says "Server is off for come later", while still showing 2 players on. What's happeneing? Did someone take over the server or is it server staff restarting it?

IGN DestructionMaker