Cannot enter card details on mobile or ipad

I cannot enter credit card details on the checkout page of my website through the mobile and ipad version. It works fine on the desktop.
I have switched themes multiple times and the issue is still occurring.
I have disabled all plugins except Woocommerce and the issue is still occurring.
I have gone through all fatal error logs and settings for payments and this is still not working.
On the checkout page of my website on mobile and ipad, you can enter all of your billing details but when you get to entering your credit card, it’s greyed out so no-one can purchase my products.
This is a huge problem and I’d like to know how to fix this ASAP.

The page I need help with: [log in to see the link]