Fatal error: Uncaught Error: Undefined constant Symfony\Component\HttpFoundation\Request::HEADER_X_FORWARDED_ALL in /var/www/html/bootstrap/app.php:16 Stack trace: #0 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Configuration/ApplicationBuilder.php(281): {closure:/var/www/html/bootstrap/app.php:15}(Object(Illuminate\Foundation\Configuration\Middleware)) #1 /var/www/html/vendor/laravel/framework/src/Illuminate/Container/Container.php(1622): Illuminate\Foundation\Configuration\ApplicationBuilder->{closure:Illuminate\Foundation\Configuration\ApplicationBuilder::withMiddleware():276}(Object(Illuminate\Foundation\Http\Kernel), Object(Illuminate\Foundation\Application)) #2 /var/www/html/vendor/laravel/framework/src/Illuminate/Container/Container.php(1560): Illuminate\Container\Container->fireCallbackArray(Object(Illuminate\Foundation\Http\Kernel), Array) #3 /var/www/html/vendor/laravel/framework/src/Illuminate/Container/Container.php(1546): Illuminate\Container\Container->fireAfterResolvingCallbacks('Illuminate\\Cont...', Object(Illuminate\Foundation\Http\Kernel)) #4 /var/www/html/vendor/laravel/framework/src/Illuminate/Container/Container.php(951): Illuminate\Container\Container->fireResolvingCallbacks('Illuminate\\Cont...', Object(Illuminate\Foundation\Http\Kernel)) #5 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1078): Illuminate\Container\Container->resolve('Illuminate\\Cont...', Array, true) #6 /var/www/html/vendor/laravel/framework/src/Illuminate/Container/Container.php(864): Illuminate\Foundation\Application->resolve('Illuminate\\Cont...', Array) #7 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1058): Illuminate\Container\Container->make('Illuminate\\Cont...', Array) #8 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1218): Illuminate\Foundation\Application->make('Illuminate\\Cont...') #9 /var/www/html/public/index.php(20): Illuminate\Foundation\Application->handleRequest(Object(Illuminate\Http\Request)) #10 {main} thrown in /var/www/html/bootstrap/app.php on line 16