I tried setting up my blog as a network and it seemed to work fine but in the end I didn't need the feature so I tried to revert back to previous normal wordpress. I messed things up so in the end I made a backup of the database and deleted the wordpress installation from cPanel.
I set up wordpress again using Fantastico De Luxe, and then from the file "FileSystem" folder which was included with the backup (used WPOnline backup plugin to make the backup), I copied and pasted these files over the files of the site using FTP.
However now when I try to load the page, or visit the login page, it just says "Error establishing a database connection".
Anyone able to help? Thanks