« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: fopen(/www/revonet/assets/snippets/contatore/counter.txt): failed to open stream: No such file or directory 
  Error type/ Nr.: Warning - 2 
  File: /www/netrevo/manager/includes/document.parser.class.inc.php(769) : eval()'d code 
  Line: 75 
 
Parser timing
  MySQL: 0.0048 s(4 Requests)
  PHP: 0.0411 s 
  Total: 0.0459 s