Well, like you said "restored only the Qliksense server backup like C drive from 3 days backup", so basically you restore for a backup from 3 days ago, data from 3 days ago, so I would expect not to see present data by restoring a 3 days ago db, so anything new made after that backup it will be gone, unfortunately, . For that reason, it is a good practice to do a daily backups, specially if you know there are changes done very frequent.
BR
Gio
Giuseppe Novello
Principal Technical Support Engineer @ Qlik