You can reset your marketplace by following these steps,
Go to the admin panel.
In the “Advanced” category, you can click the “Reset Marketplace”
3. There you can click the “Reset” button.
4. You’ll receive a popup for the confirmation.
5. Upon clicking Yes your marketplace will be reset.
Note: Upon Resetting your marketplace, all your data including users, listings, transactions, images, etc., will be reset. You cannot retrieve your data.