Hello Amin,
Thanks for writing in!
Please be advised that All in One SEO Pack plugin does not display any meta information in the front page. It will only reflect if you view the source code of your page.
I have inspected your site and I cannot find the product meta, the default WooCommerce product meta. This could be caused by a 3rd party plugin. You could try testing for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it’s fixed, you’ll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.
By the way, we have released X 7.2.3 and Cornerstone 4.2.3. It is now available in automatic updates. You can now update to this latest version. This latest release contains fixes for several issues so be sure to check out the changelog (http://theme.co/changelog/).
After doing the updates, always remember to clear all caches (if you are using WP Rocket, WP SuperCache or W3 Total Cache) when updating so that the code from the latest release is always in use. This will help you to avoid any potential errors.
Best Regards.