« 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 template::fetch() should not be called statically, assuming $this from incompatible context 
  Error type/ Nr.: - 2048 
  File: /home2/cillsite/public_html/assets/snippets/ditto2/extenders/summary.extender.inc.php 
  Line: 79 
  Line 79 source: $trunc_tpl = isset($tplTrunc)? template::fetch($tplTrunc) : false;  
Parser timing
  MySQL: 0.0035 s(10 Requests)
  PHP: 0.0400 s 
  Total: 0.0434 s