I bought a server via bisecthosting to play with my friends yesterday.I hadn't put any plugin or backuped my server.Then,while I was offline some hackers came and griefed my server.Their name was and put a sign saying that i got their IP.I reset the world and suddenly it becomes so glitchy.I can't do something to make it normal again.The IP: 37.59.144.208:25565 I NEED HELP