"Add to cart" button doesn't work in mod_news_pro_gk4

Hi, I use Show VM "Add to cart" button in a mod_news_pro_gk4 module, but it doesn't work.
No item is added to the cart.

Any ideas?
Thanks

It's work when You uninstall K2store but is different problem --> 96-yourshop/74172-2-differents-problems.html

Hi trzepiz, thanks.

For the other problem turn off the plugin: System - Mootools Upgrade.

It works for me.

Hi, thanks - It works.

Another option is to use NoNumber's extension called ReReplacer. With this extension, you can keep mtupgrade enabled ( needed for things like Kunena and other fun mootools scripts ) but you can have ReReplacer remove the call to the mtupgrade plugin only for the Virtuemart component.

It's really simple to do. Just install the rereplacer component. Check out the source code on your virtuemart page, copy the code that looks like this:

<script type="text/javascript" src="/yadda/yadda/plugins/system/mtupgrade/mootools.js"></script>

then create a new rereplacer rule, paste that script in the first box and leave the second box blank. Make sure that you have the "everywhere" option selected, just take a look at rereplacer, it's great ( as are all of Peter's extensions ).