It seems we exceeded our "Virtual Private Server" capacity. I was checking, but it turns out the graphs are meaningless wallpaper. Since that didn't seem to be the problem as best I could tell, I waited instead of acting. Oooops.
Anyway, we jumped our capacity up, so there should be no problems for a while. The server company says they are working on a way to notify people when this happens. That would be nice.... [skepti]