DONATE – PAYPAL issue

Hi,

I have enables Paypal in FUNDPRESS > SETTINGS and I have set the correct email to receive money via PayPal.

I tried to make a payment after selecting Production mode.

On Donors I come up as a new one and Donates records my test payemnt on 1 Euro BUT PayPal says there is a problem and sends me to this URL https://www.paypal.com/webapps/shoppingcart/error?flowlogging_id=1ac062e29e588&code=EWP_SETTINGS

What is the problem?

Thanks.