Error code 13113, or "The Buyer cannot pay with PayPal for this Transaction" means that PayPal has taken a security measure by refusing to process the transaction. This can happen for one of the following reasons (there are more, but here are a few): The buyer does not have enough money in their account The buyer does not have enough money in their account, and there is a problem charging their credit card (if they have that set in their settings) The buyer has asked for a refund on another item from the seller, and PayPal has therefore blocked the buyer's account from transferring money to the seller until the situation has been resolved. The buyer is suspected of fraudulent activity, so there is a freeze on their accounts. The buyer's account is restricted to sending money to the specific seller for some other reason The buyer's account is entirely frozen for some specific reason Unfortunally only PayPal's customer support will be able to tell you why exactly the transaction is failing. (At least we hope they can.) You may need to contact them direct.
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