Access forbidden

-- HikaShop version -- : 2.2.3
-- Joomla version -- : 3.2.0
-- PHP version -- : 5.4
-- Error-message(debug-mod must be tuned on) -- : Error - Access forbidden

Hi, when i try to display (in the backend) my products and then select from the drop down to display all sub elements rather than direct subelements i get a message saying access forbidden. I am logged in as super admin so this error message doesnt sound like it should be to do with user groups so i am not sure why it is saying that? any ideas?

Thanks

Great, thanks.