Hi, we are using the YITH Zoom magnifier plugin which we normally use for our woocommerce sites and it always works, but it seems to be broken on Xstore Theme.
When we click into a product, this works, but if we click on the gallery thumbnails below the main product image, the zoom stops working. It seems the theme is resizing the images to 600×600 and this is what is causing the zoom to break. We are uploading our images as 1000×1000 pixels.
I have created test product as draft and used images with good resolution. Don’t see any issue with thumbnails. I checked your products and see that you use images with 360x360px or 600x600px. That’s why you don’t have any zoom effect. If you enable default theme you’ll see the same.
Only XStore Quick View option has the compatibility problem with this plugin and unfortunately we can’t fix it. So, either you should disable Quick View option or plugin.