Yes I checked the url (https://yellowadtech.com/saritoria/product/pink-manish-malhotra-lehenga-set/) on mobile devices and laptops and desktop.
The last image of product gallery is not clickable in most of the devices like laptops (1280 X 720 screen resolution) and many mobile devices like iphone X etc.
But the last image is working properly in bigger resolution like 1920 X 1080 or 1440 X 900.
Please check