How do I fix when a product does not add to cart on a mobile phone?

[KR_Workshop]

I have published a website and everything is working on my computer but when I went on my phone to make sure the website was working I was not able to add items to cart. Today is my launch day and I would really appreciate it is you could help me as soon as possible. 

[JJ_]

Hello there @KR_Workshop

I have verified your site from my mobile device and was able to add products to the cart and proceed to checkout (did not complete checkout as this was only a test). Please let me know if you are still having the issue you mentioned.

P.S. Welcome to the Seller Community