Bukkit released their first Recommended Build in quite a while today, and the server and its plugins are about to update. Yay for bugfixes! We will be switching to Bukkit 1.4.7-R1.0 in just a few minutes. If you haven’t already, you should update your Minecraft client to 1.4.7 to take advantage of the bug fixes it offers.
Downtime should only take around 15 minutes, but in the meantime, stay tuned to the forum and our IRC channel while the update takes place for any additional information. Thanks for your patience!
On a related note, we are aware that the server has been lagging and crashing somewhat more often than usual and are looking into possible causes. It is our hope that this update will be a step in the right direction, but further actions are planned to make sure your time in Cubic Worlds is smooth and trouble-free.