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We apologize, but the payment button settings are incorrect. The following problems occurred:
ap_purchasetype field is invalid. Acceptable values are item, service, item-goods, item-auction & subscription.
ap_currency field is invalid.
ap_itemname field cannot be left empty.
Sorry the merchant account is invalid
If you are a buyer, please inform the seller.
Alertpay may have changed their settings. I got this on YOUR (Developer's) site.