selecting all on product list not found /components/com_virtuemart/virtuemart.ph

[mabeall32]

I having a problem when you select all on product listing I get a fatal error.
Fatal error: Class 'VirtuemartControllerExtensiontraction' not found in /home/maxines3/public_html/matlinmfg/components/com_virtuemart/virtuemart.php on line 70
any idea on how to fix it?