Hello everybody. All of a sudden I'm getting a 503 error when I try to move a plugin between sidebars or delete it. I can install new ones OK and everything seems to be working fine apart from this. It certainly used to work alright, and I haven't tinkered with anything. I've got V 2.1.1 (upgraded from 1.8 to try and fix this, but it didn't) and php 5.4.45 and mysqli. And yes, I'm certain it's not my server...!