Гуру php прошу помочь

При голосовании в Джумле выскакивает ошибка Invalid Token. Опытным путем выяснил, что конфликт идет с компонентом кеширования. Но без него никак. Решил сделать поиск по словам Invalid Token в папке компонента голосования - и нашел несколько совпадений. Что это вообще за ошибка? Может можно файлик приложенный подправить, чтобы она не выскакивала?

<?php

/**

 * @version		$Id: controller.php 10381 2008-06-01 03:35:53Z pasamio $

 * @package		Joomla

 * @subpackage	Config

 * @copyright	Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.

 * @license		GNU/GPL, see LICENSE.php

 * Joomla! is free software. This version may have been modified pursuant to the

 * GNU General Public License, and as distributed it includes or is derivative

 * of works licensed under the GNU General Public License or other free or open

 * source software licenses. See COPYRIGHT.php for copyright notices and

 * details.

 */



// Check to ensure this file is included in Joomla!

defined('_JEXEC') or die( 'Restricted access' );



jimport( 'joomla.application.component.controller' );



/**

 * @package		Joomla

 * @subpackage	Config

 */

class PollController extends JController

{

	/**

	 * Custom Constructor

	 */

	function __construct( $default = array())

	{

		parent::__construct( $default );



		$this->registerTask( 'apply', 		'save');

		$this->registerTask( 'unpublish', 	'publish');

		$this->registerTask( 'preview', 	'display');

		$this->registerTask( 'edit', 		'display');

		$this->registerTask( 'add' , 		'display' );



	}



	function display( )

	{

		switch($this->getTask())

		{

			case 'add'     :

			{

				JRequest::setVar( 'hidemainmenu', 1 );

				JRequest::setVar( 'layout', 'form'  );

				JRequest::setVar( 'view', 'poll'  );

				JRequest::setVar( 'edit', false  );

			} break;

			case 'edit'    :

			{

				JRequest::setVar( 'hidemainmenu', 1 );

				JRequest::setVar( 'layout', 'form'  );

				JRequest::setVar( 'view', 'poll'  );

				JRequest::setVar( 'edit', true  );

			} break;



			case 'preview' :

			{

				JRequest::setVar( 'tmpl', 'component' );

				JRequest::setVar( 'view', 'poll'  );

			} break;

		}



		//Set the default view, just in case

		$view = JRequest::getCmd('view');

		if(empty($view)) {

			JRequest::setVar('view', 'polls');

		};



		parent::display();

	}



	function save()

	{

		// Check for request forgeries

		JRequest::checkToken() or jexit( 'Invalid Token' );



		$db		=& JFactory::getDBO();



		// save the poll parent information

		$row	=& JTable::getInstance('poll', 'Table');

		$post	= JRequest::get( 'post' );

		if (!$row->bind( $post ))

		{

			JError::raiseError(500, $row->getError() );

		}

		$isNew = ($row->id == 0);



		if (!$row->check())

		{

			JError::raiseError(500, $row->getError() );

		}



		if (!$row->store())

		{

			JError::raiseError(500, $row->getError() );

		}

		$row->checkin();

		// save the poll options

		$options = JArrayHelper::getValue( $post, 'polloption', array(), 'array' );



		foreach ($options as $i=>$text)

		{

			$text = htmlspecialchars($text, ENT_QUOTES, 'UTF-8');

			if ($isNew)

			{

				$obj = new stdClass();

				$obj->pollid = (int)$row->id;

				$obj->text   = $text;

				$db->insertObject('#__poll_data', $obj);

			}

			else

			{

				$obj = new stdClass();

				$obj->id     = (int)$i;

				$obj->text   = $text;

				$db->updateObject('#__poll_data', $obj, 'id');

			}

		}



		switch ($this->_task)

		{

			case 'apply':

				$msg = JText::_( 'Changes to Poll saved' );

				$link = 'index.php?option=com_poll&view=poll&task=edit&cid[]='. $row->id .'';

				break;



			case 'save':

			default:

				$msg = JText::_( 'Poll saved' );

				$link = 'index.php?option=com_poll';

				break;

		}



		$this->setRedirect($link);

	}



	function remove()

	{

		// Check for request forgeries

		JRequest::checkToken() or jexit( 'Invalid Token' );



		$db		=& JFactory::getDBO();

		$cid	= JRequest::getVar( 'cid', array(), '', 'array' );



		JArrayHelper::toInteger($cid);

		$msg = '';



		for ($i=0, $n=count($cid); $i < $n; $i++)

		{

			$poll =& JTable::getInstance('poll', 'Table');

			if (!$poll->delete( $cid[$i] ))

			{

				$msg .= $poll->getError();

			}

		}

		$this->setRedirect( 'index.php?option=com_poll', $msg );

	}



	/**

	* Publishes or Unpublishes one or more records

	* @param array An array of unique category id numbers

	* @param integer 0 if unpublishing, 1 if publishing

	* @param string The current url option

	*/

	function publish()

	{

		global $mainframe;



		// Check for request forgeries

		JRequest::checkToken() or jexit( 'Invalid Token' );



		$db 	=& JFactory::getDBO();

		$user 	=& JFactory::getUser();



		$cid		= JRequest::getVar( 'cid', array(), '', 'array' );

		$publish	= ( $this->getTask() == 'publish' ? 1 : 0 );



		JArrayHelper::toInteger($cid);



		if (count( $cid ) < 1)

		{

			$action = $publish ? 'publish' : 'unpublish';

			JError::raiseError(500, JText::_( 'Select an item to' .$action, true ) );

		}



		$cids = implode( ',', $cid );



		$query = 'UPDATE #__polls'

		. ' SET published = ' . (int) $publish

		. ' WHERE id IN ( '. $cids .' )'

		. ' AND ( checked_out = 0 OR ( checked_out = '.(int) $user->get('id').' ) )'

		;

		$db->setQuery( $query );

		if (!$db->query())

		{

			JError::raiseError(500, $db->getErrorMsg() );

		}



		if (count( $cid ) == 1)

		{

			$row =& JTable::getInstance('poll', 'Table');

			$row->checkin( $cid[0] );

		}

		$mainframe->redirect( 'index.php?option=com_poll' );

	}



	function cancel()

	{

		// Check for request forgeries

		JRequest::checkToken() or jexit( 'Invalid Token' );



		$id		= JRequest::getVar( 'id', 0, '', 'int' );

		$db		=& JFactory::getDBO();

		$row	=& JTable::getInstance('poll', 'Table');



		$row->checkin( $id );

		$this->setRedirect( 'index.php?option=com_poll' );

	}

}