quickstart chyba? database not given

Ahoj, zkousel jsem Quickstart, vse podle navodu az po sem: „https://doc.nette.org/cs/quickstart/home-page“ (vcetne)
Vsechno funguje krasne, ale kdyz ted nastavim

$configurator->setDebugMode(FALSE);

dostavam Error (server error 500) a z logu vyctu, ze [2016-12-08 23-33-18] Recoverable Error: Argument 1 passed to App\Presenters\HomepagePresenter::__construct() must be an instance of Nette\Database\Context, none given, called in C:\Users\...\temp\cache\Nette.Configurator\Container_288b21e055.php on line 176 and defined in C:\Users\...\app\presenters\HomepagePresenter.php:15 @ http://localhost/ @@ exception--2016-12-08--22-12--56dac5a108.html