no add to cart function

Hi I checked many post about this issue, but I just can’t fixed it.

I don’t have the “add to cart button option” anymore.
I remember there should be a lightbox for the products too.

I have the KleoTheme, which works fine with Woocommerce. I also checked for plugins and javascripts.

Any idea.

this is my shop https://www.kawaii.com/shop/

https://www.ads-software.com/plugins/woocommerce/