Heh heh :-) Why does it always happen when we are sleeping?
The image server seems to show a little peculiar behaviour but it's nothing rare and unexpected. A simple restart will fix it, when Liquid is online.
We don't have money for a fail-safe system. We also don't have money to hire people to monitor the site 24 hours a day. However, we offer several ways how to contribute, at least for a new database server. Who really wants to help and not only talk about it, helps. It's not mandatory, of course. But it's an option for everyone.