« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: include(../../includes/modx/snippet_getCommentsArchive.php) [function.include]: failed to open stream: No such file or directory 
  Error type/ Nr.: Warning - 2 
  File: /var/www/html/narayana-verlag.de/modx/manager/includes/document.parser.class.inc.php(780) : eval()'d code 
  Line: 1 
 
Parser timing
  MySQL: 0.0105 s(135 Requests)
  PHP: 0.1437 s 
  Total: 0.1542 s