All gone. My login page is blank, homepage is blank, everything else "Requested Page not known on this server".
Yesterday it was fine. I haven't updated or performed any admin tasks, indeed haven't looked at the back end of the site for at least a week.
I use Filezilla to access the server, and it all seems to be there. I have backups e-mailed to me, but don't know the procedure.
Would be grateful for any help.