Problem z płatnością PayPal Opcje

[Freshoy]

Witam, posiadam następujący błąd:

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exception 'PayPal\Exception\PPConfigurationException' with message 'You must set one of service.endpoint or mode parameters in your configuration' in /home/p491094/public_html/paypal/vendor/paypal/rest-api-sdk-php/lib/PayPal/Rest/RestHandler.php:114 Stack trace: #0 /home/p491094/public_html/paypal/vendor/paypal/rest-api-sdk-php/lib/PayPal/Rest/RestHandler.php(72): PayPal\Rest\RestHandler->_getEndpoint(Array) #1 /home/p491094/public_html/paypal/vendor/paypal/rest-api-sdk-php/lib/PayPal/Transport/PPRestCall.php(71): PayPal\Rest\RestHandler->handle(Object(PayPal\Core\PPHttpConfig), '{"intent":"sale...', Array) #2 /home/p491094/public_html/paypal/vendor/paypal/rest-api-sdk-php/lib/PayPal/Common/ResourceModel.php(57): PayPal\Transport\PPRestCall->execute(Array, '/v1/payments/pa...', 'POST', '{"intent":"sale...', NULL) #3 /home/p491094/public_html/paypal/vendor/paypal/rest-api-sdk-php/lib/PayPal/Api/Payment.php(410): PayPal\Common\ResourceModel::executeCall('/v1/payments/pa...', 'POST', '{"intent":"sale...', NULL, Object(PayPal\Rest\ApiContext), NULL) #4 /home/p491094/public_html/paypal/checkout.php(64): PayPal\Api\Payment->create(Object(PayPal\Rest\ApiContext)) #5 {main}
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63 ...
try {
    $payment->create($paypal);
} catch (Exception $e) {
    die($e);
}.. 67
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