Hello,
01. Please deactivate all the 3rd party plugins and activate only theme-required plugins on the site and then check the issue. I am sure your issue will be solved. Then Activate the 3rd party plugins one by one and check which plugin is creating the issue for you.
Otherwise, if the issue still exists then keep the 3rd party plugins deactivated and share the WP login details so I will check and give you a possible solution.
02. Please make a full backup of your site and check how it works with the default WordPress theme like WooCommerce Storefront to understand if it is our theme issue or not.
Best Regards.