problem of button - add to cart

[plcder]

Hello,
        I have a problem that the button of add to cart is not working, when i log in account as an customer.
        Only on the description of product pages, the button "add to cart'' is not working and the top of the icon "cart" also not working.
        Plz let me know how to deal with this problem thank u.
        Version of joomla 3.8.6
        Version of Virtuemart 3.2.14
 
        *Website: http://ec18.likbox.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=162&virtuemart_category_id=60&lang=zh
        *Test account: S123456789
        *Password: 123456
 

       

[anantmaks]

It seems to be working fine
https://prnt.sc/jqkhnn

[jenkinhill]

It worked for me, but you do have a javascript issue on product pages:
TypeError: jQuery(...).fancybox is not a function