« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: Attempt to assign property of non-object 
  Error type/ Nr.: Warning - 2 
  File: /home/u420876/dasportu.ru/www/manager/includes/document.parser.class.inc.php(814) : eval()'d code 
  Line: 20 
 
Parser timing
  MySQL: 0.0109 s(260 Requests)
  PHP: 0.1984 s 
  Total: 0.2092 s