The past few days have been brutal in terms of trying to keep my sites online. I’m not sure what has caused the problems, but we’ve just downgraded WP to a previous version to see if the WP update of two days ago was responsible for breaking things.
Great thanks to Justin Shafer for trying to sort out the problems and for trying to fix them, but there’s no guarantee that they’re fixed now, so please accept my apologies, and be patient if the site continues to experience interruptions.