Backup from file_"folder does not contain" error

I’ve saved backup_201310061447 before reinstalling windows.
On fresh windows, installed emclient. Copied this backup file to appropriate location (user/my documents/em client). Location is correct (the same is set in new eMclient backup settings). When trying to restore accounts and emails from file - get a message that folder does not contain backup file.
Please help, as there are 2 years my work emails, and no copies available on server ;(


Unfortunately this is broken database, can I ask you how you have made your backup and if you were doing anything with it?

with regards