In your resources/views/errors folder make sure you have a 404.blade.php file and if that is not there then create it and put  something in this file.       Sepending on your environment setup. FYI,  in app\Exceptions\Handler.php file the handler method handles/catches the errors. So check it, you may customize it, for example:    public function render($request, Exception $e)     {         // Customize it, extra code         if ($e instanceof AccessDeniedHttpException) {             return response(view('errors.403'), 403);         }                  // The method has only this line by default         return parent::render($request, $e);     }

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