Hello @darkcod3r
It seems like you are still using the PRO version of the plugin. Here is a screencast showing the same so there is no confusion:
https://i.rankmath.com/W81NLn
Can you please open a new support ticket with us so we can assist you better?
https://support.rankmath.com/product/rank-math-pro-business/
We can see that the title & description meta tags are getting printed on your website.
Assuming you are using the latest version of all the plugins, themes, and WordPress (please update if not yet), it would seem like a conflict with one of the plugins or the theme you are using.
To determine that, please follow this troubleshooting guide:
https://rankmath.com/kb/check-plugin-conflicts/
Only the site admin would know and your users won’t be affected by this troubleshooting.
Please record the screencast and open a new support thread on our with us so we can assist you.
Looking forward to helping you.