I am working on Advanced Integration. No changes in the downloaded code from Paypal except my client id and client secret but I got this error. By checking the browser console, it is occurring after making a request to "https://www.sandbox.paypal.com/v2/checkout/orders/03S74492AF553953B/confirm-payment-source" ( Failed to load resource: the server responded with a status of 400 () ). I don't see any errors in the server.js. Please help me. I need this to finish as soon as possible.
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