Error on add to cart

[cknudtson@.....com]

I am actually using virtuemart 3.0.2 on Joomla 2.5.27 so not sure if this is the correct forum. However, I am getting an error when I try to add an item to my cart. I've tried re-installing the component several times and it installs just fine.

Warning: require(/administrator/components/com_virtuemart/helpers/permissions.php) [function.require]: failed to open stream: No such file or directory in /components/com_onepage/helpers/mini.php on line 58

[admin]

hello, pls update opc to the very latest version at our download section and let us know if this fixed your issue. in some circumstances (per a specific opc config) you may be getting this error as opc incorrectly recognized VM version there.

best regards, stan