I get this error when trying to purchase xenword.

We cannot process this transaction because there is a problem with the PayPal email address supplied by the seller. Please contact the seller to resolve the problem. If this payment is for an eBay listing, you can contact the seller via the "Ask Seller a Question" link on the listing page. When you have the correct email address, payment can be made at www.paypal.com.

Your purchase couldn't be completed
There's a problem with the merchant's PayPal account. Please try again later.

Anyway, that I can purchase this?

Thanks!