You can set your cart settings when your store is closed. those options will be available only for the Pro version.

Empty cart when close

When your shop is closed by forcefully or by automatically if the items are already in the cart, do you want to remove them or do you want to keep them as it is?

Allow add to cart

When your shop is closed you can allow your customers to add products to the cart.

But still, they will not able to complete the order rather they will just be able to add products into the cart, so that when the shop will open again they can order those items.

This option will override the previous option.