upgrade to K2 store 2.6

Hi i tried to upgrade to k2store 2.6 but the "add to cart button" is not working. Do you have any idea how to fix this?

I read those below at the K2 store FAQ

Add to cart button not working?

Two reasons.
1. Your site might have Javascript conflicts. K2Store uses the default Mootools library. Sometimes, if other libraries are present (like jQuery), it may lead to conflicts. Use the Firebug extension for Firefox to check if your site has Javascript conflicts.
2. Other extensions you use in your site might have Javascript errors.

Do you have any idea how to fix this i am using Reastaurant Template

Hi

This template doesn;t have a support for this K2 version, please downgrade and wait till the official update will be released.

At first thanks for your reply!
I downgraded, now i have another problem.
I translate the "en-GB.com_k2store.ini" file and even though i can see that it is translated an saved correctly in the FTP, in the live site k2 store elements still appear in english.
I have cleared joomla 2.5 cache.

Do you have any idea why is that happening?

Hi

I think that this has been overrwritten by a different file values. Please make a quick scan across all lang files looking for a second instance of some sentences from mentioned file.

You have to modify files in \tempaltes\gk_restaurant\html\com_k2store and search for files you need to modify.