I've taken the server down to take a quick world backup and apply a server side patch, this should take between 45 minutes and 1 hour.
Apologies for the short notice, updates will be be posted here.
Update: 11:35 - The server is back up, but the whitelist is on while I check the patch is working as intended, it shouldn't take long.
Update: 12:00 - The whitelist is now turned off and players can connect as usual!
I'll post more details about the patch shortly.
