Form doesent work on simple product

Hi, thanks for your support.

I am using uncode theme and woocommerce. Unfortunately the plugin does not display anything on simple product and only an “inventory advice” on variable product. Does anyone had the same issue with this theme?

Could you help me to find a solution?
Thanks a lot!
All the best.

I am using Wp 6.1.1. and Woocommerce 7.2.2

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