Ladenka nic neukazuje(nevim kde nastane chyba)

Caute, mam nette pre php 5.3. a hosting u pipni.cz, no ladenka nic neukazuje a teda nikdy neviem kde nastane chyba – v logu je len: PHP Fatal error: Uncaught exception Nette\Application\ApplicationException with message ‚An error occurred while executing error-presenter‘

v bootstrape:

<?php
Debugger::$strictMode = TRUE;
Debugger::enable(Debugger::DEVELOPMENT);
...
$application = $configurator->container->application;
$application->catchExceptions = FALSE;
$application->errorPresenter = 'Front:Error';
?>

error presenter vo front module:

<?php
namespace FrontModule;

use \Nette\Diagnostics\Debugger,
    \Nette\Application as NA;

class ErrorPresenter extends \BasePresenter
{...
?>

pri chybe vzdy dostanem hlasku od browseru this webpage is not available