I find this on them forest what should I do ?

customer: Hey! Managed to get this fixed with the host I think. Basically, the items were not staying in cart unless HTTPS activated on cart. But only in your theme. Tried 10 others, all good. SO WEIRD. Fingers crossed it’s sorted.

you: Maybe because we are using AJAX add to cart for products. Anyway, we hope that it is already fixed 🙂

Regards