jacob-bakrie Hi
I'm sorry to hear that your site being hacked.
If all your files and folders have been deleted, leaving you with only the database, I recommend installing a fresh copy of Joomla on your localhost using a new database, instead of utilizing your backup database. This approach will help ensure a clean installation that is free from any potential vulnerabilities.
Once the installation process is complete, you can proceed to edit the configuration file and redirect it to your backup database and see how it goes.