exc argumentexception: expected a positive value for the world area, but was: 0 parameter name: wrld size

[Dr.Chazzzzz]

After b330 came out I wiped my server, updated it, generated a map, but when I and a friend joined the server and the map downloaded, during initializing we got this error

exc argumentexception: expected a positive value for the world area, but was: 0 parameter name: wrld size

and got stuck on initializing world