We are aware of issues with this server and are working to get it back online as quick as possible.
Update @ Fri Oct 8 23:31 BST 2018: The server has been rebooted. It is currently undergoing a file system integrity check.
Update @ Fri Oct 8 23:50 BST 2018: The file system check is at 78%.
Update @ Fri Oct 9 00:27 BST 2018: The server is up and running.