To restore files in JetBackup 5, it works slightly different than the old version of JetBackup.
To restore the primary domain of your account, we have to select the public_html directory:
To restore files for subdomains or addon domains in JetBackup 5, we sadly have to manually restore some folder permissions after the restoration due to a bug in JetBackup (It has been reported and a fix is coming). It requires setting "755" permissions for the directory of the restored domain.