At checkout, if the customer selects PayPal Plus as a payment condition, the message erro inesperado ("unexpected error") may be displayed on the screen. This is a rare and intermittent event, but it can still trouble your customers at a key moment during shopping experience.
For now, the user can only solve the problem by editing their browser settings. They must enable the option that allows other websites to access the cookies of the store in which they are making the purchase.
We recommend that if a customer contacts your store reporting this type of behavior, you should tell them to adjust their browser's cookie settings.