Hello,
Thanks for contacting Rank Math, and sorry for any inconvenience caused.
Could you please try accessing the website on your computer with an Incognito window from Chrome?
If that doesn’t help, please clear the entire cache and cookies from your browser and try again.
https://support.google.com/accounts/answer/32050?hl=en&co=GENIE.Platform%3DDesktop
Please note that this would wipe out any active logged-in websites and you will need to login into all of them again.
Also, please check that the Add SEO Controls option is enabled at Rank Math > Titles & Meta > [Your Post Type] > Enable Add SEO Controls

Do note that some options are only available when you enable the Advanced Mode in the Rank Math dashboard:
https://i.rankmath.com/JAj5ak
Hope that helps.
Thank you.
thank you very mush that’s very helpful
Hello,
We are glad we could address your concern. If you have any other questions in the future, know that we are here to help you.
If you don’t mind me asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/#new-post about your overall experience with Rank Math? We appreciate your time and patience.
If you do have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.