« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: Non-static method MemberCheck::getInstance() should not be called statically, assuming $this from incompatible context 
  Error type/ Nr.: - 2048 
  File: /home/telemac/www/onpp/manager/includes/document.parser.class.inc.php(772) : eval()'d code 
  Line: 129 
 
Parser timing
  MySQL: 0.0005 s(0 Requests)
  PHP: 0.0215 s 
  Total: 0.0220 s