I had a US customer not able to process a visa payment on the store (we are in Canada). He received the following error;

(0) Invalid merchant id (merchant_id = 0) - Your credit card could not be authorized for this reason. Please correct the information and try again or contact us for further assistance.


He was able to process a payment through Paypal however.

Any idea what our problem could be? We've never had this problem before. We did recently transfer the store to a new site, could something be lost in translation? We have had MC and Visa transactions through from Canadian customers come through in the last couple days though.

.>Dave