Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
Rank Math automatically adds your WooCommerce product information to the Product Schema so, in WooCommerce products, you only see the option to switch between Product and None schemas.
To fix those issues, you just need to fulfill all the product information in WooCommerce, like the SKU, price, stock…
If you want, we could take a closer look at the settings, since you have the shop in maintenance mode and we can’t check it without being logged in. Please edit the first post on this ticket and include your WP logins in the designated Sensitive Data section.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.