Hello,
Thank you for contacting Rank Math, and sorry for any inconvenience caused.
Please ensure that the WooCommerce Module is enabled in the Rank Math dashboard:

Then check that the Add SEO Controls option is enabled at Rank Math > Titles & Meta > Products > Turn on Add SEO Controls

Please note that some options are only available when you enable the Advanced Mode in the Rank Math dashboard:

If the Meta Box is already added, try clearing the Rank Math transients by going to Rank Math > Status & Tools > Database Tools > Remove transients

I hope this helps. Looking forward to helping you.
Hi, unfortunately it didnt help. What can be another way to fix?
Best regards,
Ivan
Hello,
It could be that one of your plugins/themes in your website is conflicting with Rank Math.
To determine that, please follow this troubleshooting guide:
https://rankmath.com/kb/check-plugin-conflicts/
Here is a video you can follow as well: https://www.youtube.com/watch?v=FcIWRhcUP2c
Only the site admin would know and your users won’t be affected by this troubleshooting.
If the issue persists, please edit the first post on this ticket and include your WordPress login in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.

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/
Please do take a complete backup of your website before sharing the information with us.
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.