Cart is empty on mobile version

This also happens on my desktop. I notice that your page reports some errors when loading the page. The reason could possibly be that the Litespeed optimization plugin you are using is optimizing too much. I would recommend that you deactivate Litespeed as a test and see if it works better then.

I also see that you are using the commercial theme BeTheme. This provides some functions for WooCommerce, not just for the display. If the problem persists without Litespeed, I would recommend that you contact the theme’s support team: https://themeforest.net/item/betheme-responsive-multipurpose-wordpress-theme/7758048/support – questions about commercial products cannot be answered here in the forum.