Customize whoops,...

If you would like to replace that message with 500.blade.php file shipped with Josh, please follow below tutorial.

to do so, we should override convertExceptionToResponse method in app/Exceptions/Handler.php

add below code into your app/Exceptions/Handler.php

    /**
     * Convert the given exception into a Response instance.
     *
     * @param \Exception $e
     *
     * @return \Symfony\Component\HttpFoundation\Response
     */
    protected function convertExceptionToResponse(Exception $e)
    {
        $debug = config('app.debug', false);

        if ($debug) {
            return (new SymfonyDisplayer($debug))->createResponse($e);
        }

        return response()->view('admin.500');
    }

credits