Not add items in the cart - Joomla 1.6

Hi, I have installed hikashop essential in Joomla 1.6 everything works fine, but when I activate the plugin system, language filter does not add items in the cart. This only happens in Safari and Chrome, it appears "the cart is empty. "

I use a yootheme template: yoo_symphony

Please I need help.
Thanks.

We have that plugin published on our joomla 1.6 test websites and the "add to cart" button is working. Could you give a link to your website ?

Hi you can test the site the following link

www.andamiocreativo.com/pardevalles/index.php

Could you replace the file administrator/components/com_hikashop/helpers/cart.php by the one in the archive enclosed and try again ?

Hello, now works in safari, but in chrome add the product to the cart and displays the login screen a few seconds and then redirects to a blank screen with a field on the registration form.
attached screenshots.
I work with mac, this morning prove in chrome on windows
Thank you for responding so quickly.

I think that this is caused by your template which uses jquery without adding the noConflict code:
forum.joomla.org/viewtopic.php?t=283215

Thanks, you were right, the problem was the jquery, looking for forums I found a quick solution using a plugin.

tushev.org/products/jqueryintegrator

Thank you very much

Thanks Nicolas! the file solved for me too, and I was having same bug also on Internet Explorer
Cheers