Duplicate a website but delete all data

You can duplicate the site using your All in One plugin. Then you can delete all data either through phpMyAdmin in cPanel or using a plugin like WP Data Access (https://wordpress.org/plugins/wp-data-access/). In the plugin, go to the "Data Explorer" section, find the database tables you want to clear (e.g., posts, comments, orders), select them, and choose "Truncate" to remove all the data from those tables.

PS Backup your site before doing anything.