Invlid token на разрабатываемом компоненте - Модификации расширений для Joomla

jimport('joomla.application.component.controller');
$jinput = JFactory::getApplication()->input;
$jview = $jinput->getVar('view', 'cpanel' );
$jtask = $jinput->getVar('task', 'display');

require_once( JPATH_COMPONENT.DS.'controllers'.DS.$jview.'.php' );
$controllerClass = 'CsvsynchController'.ucfirst($jview);
$controller = new $controllerClass;
$controller->execute($jtask); 
$controller->redirect();

class КомпонентControllerProduct extends КомпонентController {
public function display($cachable = false, $urlparams = false) { 
	$jinput = JFactory::getApplication()->input;
	$_layout = $jinput->getCmd('layout', 'default');
	$model = &$this->getModel('product');
	$view = &$this->getView('product','html');
	$view->setModel( $model, true );
	$view->setLayout($_layout);
	$view->display();
}
public function edit() {
	JSession::checkToken() or jexit(JText::_('JINVALID_TOKEN'));
	$model = &$this->getModel('product');
	$view = &$this->getView('product', 'html');
		
	$view->setModel( $model, true );
	$view->setLayout('edit');
	$view->display();
} ...

public function display($cachable = false, $urlparams = false) { 
	$jinput = JFactory::getApplication()->input;
	$_layout = $jinput->getCmd('layout', 'default');
	$model = &$this->getModel('product');
	$view = &$this->getView('product','html');
	$view->setModel( $model, true );
	$view->setLayout($_layout);
	$view->display();
}