Hi, I have a problem with the cart on the product page, there are products in the cart but do not see that there are products, on the other pages the products appear, I would be happy to help
If the problem still continues then deactivate all the third party plugins and provide with the admin panel login details to check it myself and help you out accordingly.
Please deactivate all the third-party plugins activate the parent theme then clear cache and check back.
If the problem still continues then leave all the third-party plugins deactivated and provide with the admin panel login details of the website then we will troubleshoot with the theme plugins.