Alert Message can not be closed

I am using latest version of Min-Max quantity for Woocommerce by BeRocket. I have configured the max quantity 4 for my products. If I choose more than 4 products, it will show the error message and an “X” to close it but clicking on “X” does nothing.

How to Reproduce:
Add 5 or more quantity of a product and refresh the page or view the cart.
https://mm.quillmena.life/cart-2/

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