Hi,
Looks like there is a jQuery problem on your website.
Attachment ScreenShot2017-02-01at1.21.26PM.png not found
Please follow these steps one-by one:
1- Make sure you are using the "Latest" CleanMart version (3.9.7) along with Virtuemart3.0.18
2- Make sure this option is
checked:
Virtuemart Backend >> Configuration >> Checkout >> [One Page Checkout enabled]
3- Connect your website via FTP and
remove this JS file:
/templates/yoo_uniq/js/dynupdate.js and re-load the cart page of your website
www.pizzagustav.ch/index.php?option=com_virtuemart&view=cart
You will notice the JS file will be re-created in there (with the most up-to-date states)
These steps should fix the problem you have in the checkout page (especially the 3rd step is critical, because your current
dynupdate.js file is out-dated.
Regards