Update Kernel.php

app/Http/Kernel.php

@@ -11,6 +11,7 @@ class Kernel extends HttpKernel
      */
     protected $middleware = [
         'Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode',
+        'Illuminate\Foundation\Http\Middleware\VerifyPostSize',
         'Illuminate\Cookie\Middleware\EncryptCookies',
         'Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse',
         'Illuminate\Session\Middleware\StartSession',