Serious Problem with Paypal Standard!!!

My customers and myself have been getting this error message when we use Paypal Standard on OC 1.4.9 and 1.4.9.1

Here is the error below

Return to Merchant
Error 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 http://www.paypal.com.

I have attach the image of the error also

Now I already contacted Paypal and specialist they said that it is something dealing with the information that's being sent from OC to paypal that's giving the error because all my account information is perfectly fine!!! Can someone please assist me in correcting this problem....

Can I see a link to your site
What version of opencart?

Ok no problem the version of Opencart that I am using is 1.4.9.1
and the link to the website is www.grdistributions.com

Hey Q thanks for checking out the stuff for me...Be Blessed!!!

obviously that is not opencart.

Hey Q,

I just had the same problem! I didn't see this using the search in the opencart forum, found this original post using Google...think the Google Forum search would have found this one, but it didn't lol.

My post is here:
http://forum.opencart.com/viewtopic.php?f=20&t=20953

I would be happy if it could be combined into this one.

Kevin