When I logged on to the site tonight, I went to my WP Super Cache Settings page and found it was blank. I tried accessing it via Plugins. At first the Advanced page appeared, but when I switched to the General settings page the blank screen appeared again. The tool bar on the left side is still there, and it's just WP Super Cache that has vanished. I can still clear cache from the top tool bar when logged into the site, but can't make any changes to the cache settings. Is there an update I missed? Any clues on what I need to do?