« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
 
PHP error debug
  Error: Assigning the return value of new by reference is deprecated 
  Error type/ Nr.: - 8192 
  File: /home/admin/domains/kunstbuitengewoon.nl/public_html/manager/includes/extenders/getUserData.extender.php 
  Line: 17 
  Line 17 source: $client =& new phpSniff($GET_VARS['UA'],$sniffer_settings);  
 
Parser timing
  MySQL: 0.0018 s(6 Requests)
  PHP: 0.0179 s 
  Total: 0.0197 s