PayPal - duplicate invoice problem on a staging website

-- url of the page with the problem -- : www.winescholarguild.com
-- HikaShop version -- : 4.7.5
-- Joomla version -- : 4.3.4
-- PHP version -- : 8.0.27
-- Browser(s) name and version -- : Chrome
-- Error-message(debug-mod must be tuned on) -- : Error 10536: The transaction was refused as a result of a duplicate invoice ID supplied. Attempt with a new invoice ID

Hi,

we are testing the payments on a staging website and are getting this error from PayPal:

Error 10536: The transaction was refused as a result of a duplicate invoice ID supplied. Attempt with a new invoice ID

I suspect it's because the staging site contains an older copy of production data and attempts to create an invoice that has been previously sent to PayPal from our production instance.

Can you suggest a workaround so we can test the payment flow?

Thanks,
Peter

Ok thank you!