Variant Images when clicked not changing and open in window instead

[sunwell]

Hello,

My variant images stopped working and now when I click on them, they just open the file in the window as a JPG file. My auto zoom function also seems to have disappeared as well. It's been a while since I've updated my website so I'm not sure where to start.

My website is sunwellaccessories.com.

Thanks for your help,

Rosy