Error Wrong PayPal orderId

Hi there

I downloaded the Paypal Smart Payment button plugin for Nop 4.1. I have installed it and am trying to use it but when I try to confirm the order I get an error on the checkout page saying “Wrong PayPal orderId”


Could you please give me an ide3a of what this issue is. I am trying to get this working for a site that will be going live soon, and I will purchase the plugin if it works correctly.

Thanks

I stored order Id in session, maybe you has short life session.
It's not a problem.
I hope I solved this issue.
Try release 1.02 and write me about result,