Array ( [name] => UNPROCESSABLE_ENTITY [details] => Array ( [0] => Array ( [field] => /purchase_units/@reference_id=='default'/amount/value [value] => 0 [issue] => CANNOT_BE_ZERO_OR_NEGATIVE [description] => Must be greater than zero. If the currency supports decimals, only two decimal place precision is supported. ) ) [message] => The requested action could not be performed, semantically incorrect, or failed business validation. [debug_id] => c4686c955b8f5 [links] => Array ( [0] => Array ( [href] => https://developer.paypal.com/docs/api/orders/v2/#error-CANNOT_BE_ZERO_OR_NEGATIVE [rel] => information_link [method] => GET ) ) )