Four things:
- The database. Everything anybody wrote.
content/— every upload: avatars, covers, gallery images, attachments, files people bought.config/site.php— your credentials and the application key.extensions/— anything you installed that did not ship with Convoro.
The rest of the files are the product and can be downloaded again.
🚨 A database backup on its own is not a backup. Restoring it without content/ gives you a site where every photograph, avatar and purchased file is a broken link — and the rows will all look perfectly healthy.