Can not edit products

Hi,

I get the following error if I want edit products in the backend:

Fatal error: Class 'JAccess' not found in .../components/com_hikashop/helpers/helper.php on line 53

In frontend the site is not reachable any more, and I get the same error

Hope you can give me solution for this problem

Big thank in advanced
Claude

You don't seem to have the latest version of HikaShop as there is no call to JAccess on the line 53 of that file in the latest version.
Please update to the latest version and try again.

Hi,

I have the version 1.5.0
If I try to update to the version 1.5.2 then I get the following error:

Fatal error: Call to undefined method JFactory::getxml() in .../libraries/joomla/installer/helper.php on line 196

Thank you for your help

Greetings
Claude

That's a joomla 1.6 error. Do you have the latest version of joomla 1.6 ? If not please update.