« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
PHP error debug
  Error: file_get_contents(http://www.webclient.touradmin.ru/b/main/57490/find_tourV4/index?): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found  
  Error type/ Nr.: Warning - 2 
  File: /sata1/home/users/aviabest/www/www.avia-tourism.com.ua/tours/wc_lib.php 
  Line: 46 
  Line 46 source: $page = file_get_contents($url);  
Parser timing
  MySQL: 0.0206 s(67 Requests)
  PHP: 0.2112 s 
  Total: 0.2318 s