PayPal\Core\PayPalHttpConnection::execute:207<br><pre style='color:#F00'>string(46) "https://api.sandbox.paypal.com/v1/oauth2/token"
</pre>Create Payment Using Credit Card. If 500 Exception, try creating a new Credit Card using <a href="https://ppmts.custhelp.com/app/answers/detail/a_id/750">Step 4, on this link</a>, and using it.{
    "intent": "sale",
    "payer": {
        "payment_method": "credit_card",
        "funding_instruments": [
            {
                "credit_card": {
                    "type": "visa",
                    "number": "4148529247832259",
                    "expire_month": "15",
                    "expire_year": "2025",
                    "cvv2": "123",
                    "first_name": "Joe",
                    "last_name": "Shopper"
                }
            }
        ]
    },
    "transactions": [
        {
            "amount": {
                "currency": "USD",
                "total": "20",
                "details": {
                    "shipping": "1.20",
                    "tax": "1.30",
                    "subtotal": "17.50"
                }
            },
            "item_list": {
                "items": [
                    {
                        "name": "Ground Coffee 40 oz",
                        "description": "Ground Coffee 40 oz",
                        "currency": "USD",
                        "quantity": 1,
                        "tax": "0.30",
                        "price": "7.50"
                    },
                    {
                        "name": "Granola bars",
                        "description": "Granola Bars with Peanuts",
                        "currency": "USD",
                        "quantity": 5,
                        "tax": "0.20",
                        "price": "2"
                    }
                ]
            },
            "description": "Payment description",
            "invoice_number": "66a4faaf84759"
        }
    ]
}PayPal\Exception\PayPalConnectionException: Got Http response code 401 when accessing https://api.sandbox.paypal.com/v1/oauth2/token. in /var/www/html/ohnishi-test.site/_paypal-develop-php/vendor/paypal/rest-api-sdk-php/lib/PayPal/Core/PayPalHttpConnection.php:208
Stack trace:
#0 /var/www/html/ohnishi-test.site/_paypal-develop-php/vendor/paypal/rest-api-sdk-php/lib/PayPal/Auth/OAuthTokenCredential.php(252): PayPal\Core\PayPalHttpConnection->execute()
#1 /var/www/html/ohnishi-test.site/_paypal-develop-php/vendor/paypal/rest-api-sdk-php/lib/PayPal/Auth/OAuthTokenCredential.php(280): PayPal\Auth\OAuthTokenCredential->getToken()
#2 /var/www/html/ohnishi-test.site/_paypal-develop-php/vendor/paypal/rest-api-sdk-php/lib/PayPal/Auth/OAuthTokenCredential.php(216): PayPal\Auth\OAuthTokenCredential->generateAccessToken()
#3 /var/www/html/ohnishi-test.site/_paypal-develop-php/vendor/paypal/rest-api-sdk-php/lib/PayPal/Auth/OAuthTokenCredential.php(166): PayPal\Auth\OAuthTokenCredential->updateAccessToken()
#4 /var/www/html/ohnishi-test.site/_paypal-develop-php/vendor/paypal/rest-api-sdk-php/lib/PayPal/Handler/RestHandler.php(82): PayPal\Auth\OAuthTokenCredential->getAccessToken()
#5 /var/www/html/ohnishi-test.site/_paypal-develop-php/vendor/paypal/rest-api-sdk-php/lib/PayPal/Transport/PayPalRestCall.php(75): PayPal\Handler\RestHandler->handle()
#6 /var/www/html/ohnishi-test.site/_paypal-develop-php/vendor/paypal/rest-api-sdk-php/lib/PayPal/Common/PayPalResourceModel.php(104): PayPal\Transport\PayPalRestCall->execute()
#7 /var/www/html/ohnishi-test.site/_paypal-develop-php/vendor/paypal/rest-api-sdk-php/lib/PayPal/Api/Payment.php(571): PayPal\Common\PayPalResourceModel::executeCall()
#8 /var/www/html/ohnishi-test.site/_paypal-develop-php/CreatePayment.php(108): PayPal\Api\Payment->create()
#9 {main}