Hello,
Thanks for contacting us, and sorry for any inconvenience that might have been caused due to that.
Can you please follow the steps mentioned in the guide below to see if that resolves the issue for you?
https://rankmath.com/kb/meta-data-not-saving/
Besides, you may share your site URL with us. So that we can check as well.
Looking forward to helping you.
Thank you.
Thank you very much. Shakib. for your quick response. As per your instruction I have checked my website with developer tools I am showing a problem https://imgur.com/OC1OeJ2 can you please check it and let me know how to solve it or how I can solve it.
Hello,
Can you please share your site URL with us? That would help us to investigate the issue further for you.
Looking forward to helping you.
Thank you.
Hello,
I have updated the sensitive data as requested. Can you please check further?
Thank you.
I have updated sensitive data as you requested and we purchased Pro Version but still its not work.
Hello,
We might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins 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/
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.