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Invalid merchant configuration error upon PayPal Pro paymentAsked by highpoweredproducts on November 11, 2014 at 07:30 PMI have just received an email from a customer and he says it did not work either and said after clicking the buy now button 'invalid merchant configuration.
It seems that this is a problem related to how your Paypal merchant account is configured.
If you have a screenshot of the error code please do share it with us, you can find more information and details about the error code on this page.
You may also check this forum post where it seems that one user had also the same error, http://www.jotform.com/answers/318347-PayPal-Invalid-merchant-configuration-error.
I hope this helps. Let us know if it works.