Slide in Basket not showing content just blank

Hi, Please see video link. I hope that this explains my issue. As I have said on the video, everything was perfectly fine (from initial redesign of website approx 3 weeks ago).

Basically I have upgraded a website from a Divi set up to Elementor pro / Astra theme using Woo-commerce. My issue is that all of a sudden when I go to place a product in my basket the slide in cart is blank, nothing there at all. Strangely when I am in edit mode, everything works fine. It is just in preview and live modes that the side cart shows nothing.

I am unable to send you a link to the issue live as I have had to adapt the website by hiding the cart and setting woo-commerce to go straight to basket when a product is selected.

any advice would be greatly appreciated thanks

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