discounts don't work

-- url of the page with the problem -- : www.aroma-massage.it
-- HikaShop version -- : 4.7.2
-- Joomla version -- : 4.3.1

Hi all, I'm trying to set a 15% discount on all the products in my ecommerce.
I have set all the parameters as per the documentation but the discounts are not displayed on the product page.

Did I miss any steps?
I attach screenshot of the configuration.

any help or suggestions?

hi everyone, I solved it, an anomalous time had been set in setting the start date of the discount.

Thanks