LaravelでSocialiteのSNSログインができない。

Laravel5.5を利用しています。
OS-VersionはAWS-Linux ip-172-31-18-75 4.14.62-65.117.amzn1.x86_64 #1 SMP Fri Aug 10 20:03:52 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

LaravelのSocialiteを使ってSNSログインができません。

以下のログとなります。

どうも、Redirectするのですが、HTTPリクエストができなくて失敗しているようにも見えますがよくわかりません。
どのように対応すれば良いかご教授をお願いします。

[2018-12-12 20:57:10] production.INFO:GuzzleHttp\Exception\RequestException: cURL error 77:  (see http://curl.haxx.se/libcurl/c/libcurl-errors.html) in /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php:187
Stack trace:
#0 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php(150): GuzzleHttp\Handler\CurlFactory::createRejection(Object(GuzzleHttp\Handler\EasyHandle), Array)
#1 /var/www/html/laravel/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/html/laravel/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/html/laravel/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php(28): GuzzleHttp\Handler\CurlHandler->__invoke(Object(GuzzleHttp\Psr7\Request), Array)
#4 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php(51): GuzzleHttp\Handler\Proxy::GuzzleHttp\Handler\{closure}(Object(GuzzleHttp\Psr7\Request), Array)
#5 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php(66): GuzzleHttp\Handler\Proxy::GuzzleHttp\Handler\{closure}(Object(GuzzleHttp\Psr7\Request), Array)
#6 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/Middleware.php(30): GuzzleHttp\PrepareBodyMiddleware->__invoke(Object(GuzzleHttp\Psr7\Request), Array)
#7 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php(70): GuzzleHttp\Middleware::GuzzleHttp\{closure}(Object(GuzzleHttp\Psr7\Request), Array)
#8 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/Middleware.php(59): GuzzleHttp\RedirectMiddleware->__invoke(Object(GuzzleHttp\Psr7\Request), Array)
#9 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/HandlerStack.php(67): GuzzleHttp\Middleware::GuzzleHttp\{closure}(Object(GuzzleHttp\Psr7\Request), Array)
#10 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/Client.php(277): GuzzleHttp\HandlerStack->__invoke(Object(GuzzleHttp\Psr7\Request), Array)
#11 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/Client.php(125): GuzzleHttp\Client->transfer(Object(GuzzleHttp\Psr7\Request), Array)
#12 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/Client.php(131): GuzzleHttp\Client->requestAsync('post', Object(GuzzleHttp\Psr7\Uri), Array)
#13 /var/www/html/laravel/vendor/guzzlehttp/guzzle/src/Client.php(89): GuzzleHttp\Client->request('post', 'https://account...', Array)
#14 /var/www/html/laravel/vendor/laravel/socialite/src/Two/AbstractProvider.php(264): GuzzleHttp\Client->__call('post', Array)
#15 /var/www/html/laravel/vendor/laravel/socialite/src/Two/AbstractProvider.php(212): Laravel\Socialite\Two\AbstractProvider->getAccessTokenResponse('4/sQB74VZhQB6nD...')
#16 /var/www/html/laravel/app/Http/Controllers/Auth/SocialAccountController.php(17): Laravel\Socialite\Two\AbstractProvider->user()
#17 [internal function]: App\Http\Controllers\Auth\SocialAccountController->handleProviderCallback(Object(App\SocialAccountsService), 'google')
#18 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(54): call_user_func_array(Array, Array)
#19 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(45): Illuminate\Routing\Controller->callAction('handleProviderC...', Array)
#20 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Routing/Route.php(212): Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route), Object(App\Http\Controllers\Auth\SocialAccountController), 'handleProviderC...')
#21 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Routing/Route.php(169): Illuminate\Routing\Route->runController()
#22 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Routing/Router.php(645): Illuminate\Routing\Route->run()
#23 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(30): Illuminate\Routing\Router->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#24 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(41): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#25 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(149): Illuminate\Routing\Middleware\SubstituteBindings->handle(Object(Illuminate\Http\Request), Object(Closure))
#26 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#27 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(67): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#28 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(149): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle(Object(Illuminate\Http\Request), Object(Closure))
#29 /var/www/html/laravel/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#30