Fatal error: Uncaught GuzzleHttp\Exception\RequestException: cURL error 56: Received HTTP code 402 from proxy after CONNECT (see http://curl.haxx.se/libcurl/c/libcurl-errors.html) in /var/www/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php:187 Stack trace: #0 /var/www/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php(150): GuzzleHttp\Handler\CurlFactory::createRejection(Object(GuzzleHttp\Handler\EasyHandle), Array) #1 /var/www/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php(103): GuzzleHttp\Handler\CurlFactory::finishError(Object(GuzzleHttp\Handler\CurlHandler), Object(GuzzleHttp\Handler\EasyHandle), Object(GuzzleHttp\Handler\CurlFactory)) #2 /var/www/vendor/guzzlehttp/guzzle/src/Handler/CurlHandler.php(43): GuzzleHttp\Handler\CurlFactory::finish(Object(GuzzleHttp\Handler\CurlHandler), Object(GuzzleHttp\Handler\EasyHandle), Object(GuzzleHttp\Handler\CurlFactory)) #3 /var/www/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php(28): GuzzleHttp\Handler\CurlHandler->__invoke(Object(GuzzleHttp\Psr7\Request), Array) #4 in /var/www/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php on line 187