Selected Plan Attribute Not Working

Hi all, I’m currently having an error where I try to have it so that when someone clicks on the buy button it adds the selected plan into the cart. However at the moment when I use the data-item-selected-plan attribute as specified in the doc it’s like it freezes the cart. It adds a slot for the item into the cart but doesn’t add all the pricing and plan info and then you can’t remove the item from the cart.

Here is the link to the project

https://the-fomo-club.webflow.io/

Any help would be appreciated.