« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: number_format() expects parameter 1 to be double, string given 
  Error type/ Nr.: Warning - 2 
  File: /home/foodsfor/public_html/manager/includes/document.parser.class.inc.php(769) : eval()'d code 
  Line: 17 
 
Parser timing
  MySQL: 0.0248 s(44 Requests)
  PHP: 0.0264 s 
  Total: 0.0511 s