Fatal Error

Fatal error: Uncaught GuzzleHttp\Exception\ConnectException: cURL error 7: Failed to connect to http://www.googleapis.com port 443: Connection refused (see http://curl.haxx.se/libcurl/c/libcurl-errors.html) in /srv/disk2/2771282/www/looseweight.morrisworldtrade.com/wp-content/plugins/gmail-smtp/google-api-php-client/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php:186 Stack trace: #0 /srv/disk2/2771282/www/looseweight.morrisworldtrade.com/wp-content/plugins/gmail-smtp/google-api-php-client/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php(150): GuzzleHttp\Handler\CurlFactory::createRejection(Object(GuzzleHttp\Handler\EasyHandle), Array) #1 /srv/disk2/2771282/www/looseweight.morrisworldtrade.com/wp-content/plugins/gmail-smtp/google-api-php-client/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 /srv/disk2/2771282/www/looseweight.morrisworldtrade.com/ in /srv/disk2/2771282/www/looseweight.morrisworldtrade.com/wp-content/plugins/gmail-smtp/google-api-php-client/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php on line 186

can someone help me with this?