Why did my add to cart button stop working for subscription products?

hi, my add to cart button has stopped working for the subscription product on my website. everything else is still working

is anyone able to help as I do not want to mess around with the codes etc and make it worse!

many thanks

https://hellochews.com.au/collections/all/products/refill

Hi @robwood , I checked, it’s working fine and I am able to add the product to cart. Kindly check in private window