Problems with add to cart & variable products

Hi! I have been setting up variable products with avia layout builder. However, i assigned stock to the variations and the quantity button was not respecting this stock. As example, i had a variation with 7 stock and another with 9 stock. Product quantity allowed to select 30 or 40, but when “add to cart” button was pressed, it just reloaded the page without adding anything to cart and also not showing any alerts or error messages (this due that as far as i know, layout builder override the default woocommerce functions).

My solution was search in the kriesi forums and i found a thread that solved the problem almost completely:
https://kriesi.at/support/topic/problem-with-the-add-to-cart-item-counter-in-woocommerce-for-variable-products/

But the problem is that in my variable products it only let to add to cart the amount of stock from the variation that has less stock. Example, if i have 10 stock in a variation and 2 stock in another, it will only add 2 regardless of the selected variation. I have left credentials on the private section if you need to take a look

Any help will be appreciated. Thanks so much in advance and keep the good job!