E_USER_ERROR: 

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HTTPRelay ERROR!
HTTPRelay class needs curl extension

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[HTTPRelay.php:650] Array ( [0] => {main} [1] => /var/www/html/index.php(51): Illuminate\Foundation\Application->run() [2] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(641): Stack\StackedHttpKernel->handle(Object(Illuminate\Http\Request)) [3] => /var/www/html/application/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Illuminate\Cookie\Guard->handle(Object(Illuminate\Http\Request), 1, true) [4] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Cookie/Guard.php(51): Illuminate\Cookie\Queue->handle(Object(Illuminate\Http\Request), 1, true) [5] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Cookie/Queue.php(47): Illuminate\Session\Middleware->handle(Object(Illuminate\Http\Request), 1, true) [6] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Session/Middleware.php(72): Illuminate\Foundation\Application->handle(Object(Illuminate\Http\Request), 1, true) [7] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(745): Illuminate\Foundation\Application->dispatch(Object(Illuminate\Http\Request)) [8] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(775): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request)) [9] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Routing/Router.php(1001): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request)) [10] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Routing/Router.php(1033): Illuminate\Routing\Route->run(Object(Illuminate\Http\Request)) [11] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Routing/Route.php(109): call_user_func_array(Object(Closure), Array) [12] => [internal function]: Illuminate\Routing\Router->Illuminate\Routing\{closure}() [13] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Routing/Router.php(967): Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request), 'UserController', 'naver') [14] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(62): Illuminate\Routing\ControllerDispatcher->call(Object(UserController), Object(Illuminate\Routing\Route), 'naver') [15] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(93): Illuminate\Routing\Controller->callAction('naver', Array) [16] => /var/www/html/application/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(231): call_user_func_array(Array, Array) [17] => [internal function]: UserController->naver() [18] => /var/www/html/application/app/controllers/UserController.php(409): spl_autoload_call('NAVER') [19] => [internal function]: Composer\Autoload\ClassLoader->loadClass('NAVER') [20] => /var/www/html/application/vendor/composer/ClassLoader.php(301): Composer\Autoload\includeFile('/var/www/html/a...') [21] => /var/www/html/application/vendor/composer/ClassLoader.php(412): include('/var/www/html/a...') [22] => /var/www/html/application/app/libraries/NAVER.php(38): require_once('/var/www/html/a...') [23] => /var/www/html/application/app/libraries/HTTPRelay.php(27): HTTPRelay_REQUIRES() )