E-mail not recognized

I get this message:

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 https://www.paypal.com.

I have confirmed several times what e-mail address is associated with my Paypal account. Not sure what to do next.

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