Hello,
Thank you for contacting the support and we regret the inconvenience caused.
Could you confirm if you’re using a firewall? If yes, please whitelist this route and see if that fixes the issue: /wp-json/rankmath/v1/updateMeta
If the issue persists, please follow this guide and see if that helps:
https://rankmath.com/kb/meta-data-not-saving/
Let us know how that goes.
Thank you.
I have tried all the methods on the forum but the error still does not go away
when i check with this link: /wp-json/rankmath/v1/updateMeta
i recieved:{“code”:”rest_no_route”,”message”:”Kh\u00f4ng t\u00ecm th\u1ea5y \u0111\u01b0\u1eddng d\u1eabn n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi URL v\u00e0 ph\u01b0\u01a1ng th\u1ee9c y\u00eau c\u1ea7u.”,”data”:{“status”:404}}
Hello,
We might need to take a closer look. 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,
Could you please confirm if you’re site on a local server?
Alternatively, you can create a staging site with the same issue if your site is currently live and share the login details instead. This will also avoid your site getting any unexpected issues upon disabling plugins or switching themes.
Here is a guide that could be really useful for you on how to create a staging site: https://www.wpbeginner.com/wp-tutorials/how-to-create-staging-environment-for-a-wordpress-site/
Looking forward to helping you.
Thank 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.