As I see you write for all plugin developers only negative reviews that everything does not work. That’s suspicious.
Since our plugin Backup & Restore Dropbox works successfully for all our users,
I would recommend you: Just contact our support! We will kindly help you to solve any problem about your website.
I started a restore on Friday…left my computer running. It is now Monday and the restore process has hung up, the whole site is unusable and your plugin has failed to do what it is supposed to do.
I would not call that a successful use for this user.