Paypal Error with Coupon

Hi,

When I use a coupon I get this paypal error back:

Error: PayPal returned: The totals of the cart item amounts do not match order amounts.

Anyone know how to fix this?

this should help:
https://awodev.com/forum/awocoupon/help-section/paypal-error-awo-virtuemart

Thanks but I need to use the new Paypal API.

I do not have any experience with the new paypal api. you would need to do some debugging of the api code:
www\administrator\components\com_virtuemart\classes\payment\ps_paypal_api.php

search for coupon and verify the discount is being subtracted from the order total.