Can anyone assist in restoring my folders / sub folders in Windows Live Mail back to normal please?

Something must have happened as all my folders to the left of Windows Mail show numbers 'Recovered items' then '09-10-15 09-48-32', then 'Storage Folders', then 'Imported Folder' before displaying the folder names. There is a whole list of these Recovered items / numbers which I have to wade through when looking for something to be able to access the file that I need.

Any ideas what has happened and how I can restore back to just the file / folder names in an alphabetical listed order please?