I was getting

Not Found
The requested URL /pages/about.html was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
on one of my vShare sites, and so I checked the others and they seemed to be ok, but shortly thereafter they all started doing the same thing and after I calmed down from freaking out, after a forum search, this is usually an .htaccess issue on the host end. I have contacted tech support. Sorry to bother you.