Super Cache was working but I just logged into my site and clicked on Super Cache in Settings and saw an error message, then everything went blank. If I tried to log in as the admin, I only saw a white screen. A public visitor would also only see a white screen. I deleted the plug-in using Filezilla but now I have a string of errors with regard to all the other plug-ins.
I am using the latest version of WordPress with a multisite installation and Multi-DB with 16 databases.
The problem can be seen at: http://www.lawfirm911.com