My Pleroma server is temporarily broken... Turns out I am on an older (and now incompatible) version of postgres. Now I need to upgrade from 9.5 to 9.6 and make sure the pleroma db is using the new version. I think I know what to do, but I don't have time to try it out until later this evening... bah!
At least I don't have any users to be responsible for and apologize to about downtime...