display404errors example

try {
            $this->response = $this->handleRequest($routes, config(Cache::class), $returnResponse);
        } catch (ResponsableInterface|DeprecatedRedirectException $e) {
            $this->outputBufferingEnd();
            if ($e instanceof DeprecatedRedirectException) {
                $e = new RedirectException($e->getMessage(), $e->getCode(), $e);
            }

            $this->response = $e->getResponse();
        } catch (PageNotFoundException $e) {
            $this->response = $this->display404errors($e);
        } catch (Throwable $e) {
            $this->outputBufferingEnd();

            throw $e;
        }

        if ($returnResponse) {
            return $this->response;
        }

        $this->sendResponse();
    }