« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: require_once(domxml-php4-to-php5.php): failed to open stream: Нет такого файла или каталога 
  Error type/ Nr.: Warning - 2 
  File: /home/httpd/vhosts/tyumen-magicbox.ru/httpdocs/assets/modules/txnewsletters/txnewsletters.inc.php 
  Line: 7 
  Line 7 source: require_once('domxml-php4-to-php5.php'); //Load the PHP5 converter  
 
Parser timing
  MySQL: 0,0200 s(23 Requests)
  PHP: 0,0309 s 
  Total: 0,0509 s