URGENT: Add To Cart Function Is Greyed Out And Does Not Work - Dawn Theme

The “Add to cart” function on my product pages does not work. It appears fine when the page is loaded however once a size is selected, the button is greyed out. I did mess around with some of the coding and may have accidentally something to cause this. Any help is appreciated! My website is: www.kawaiiforus.com

SOLVED: Using this users code:

https://community.shopify.com/topic/1468709

Hi @KawaiiForUs ,

Did you check quantity of your variants? If quantity is 0, it means out of stock and cannot add to cart

Yes, I have. I am fully stocked.

Okay, so I have fixed the issue by changing my global.js code (see my above message).

However, the only issue I have is that there is a slight delay (~1 sec) once I go onto kawaiiforus.com and select a variant of a product. Is this natural?