"Add To Cart" doesn't work in apple iPhones

The Add to Cart button in my store doesn’t work on iPhone devices, which is a problem. I tested it on computers, Android smartphones, and Kindle tablets without experiencing any problems, so it only seems to be an issue for people who use Apple mobiles.

It might have anything to do with iOS.
To demonstrate what occurred, a video is provided.
Please provide a solution for me right away.

Thank you

What video? Post the link bro