Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
1. In order to fix ‘Updating Failed. The Response is Not a Valid JSON Response’, please check the link below and follow the steps:
https://rankmath.com/blog/fix-invalid-json-error/
2. Can you please share the affected URL so we can check as well and assist you further? (You can use the sensitive data section to share those).
Looking forward to hearing back from you.
Hello,
I have updated the sensitive data as requested. Can you please check further?
Thank you.
Hello,
The link you have shared can only be accessed upon logging in. Please share the URL of the page instead so we can check.
If the page is not yet published, then we might need to log in to your site to access it.
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.
Thank you.
Hello,
I have updated the sensitive data as requested. Can you please check further?
Thank you.
pages wit the Json problem are
overview
cafe
Tour and travel
Pages with failed Seo analysis, marked too many H1 tag
addis transit package
extended stay package
similar pages to the above,but not marked as too many H1 tags
celebration package and relax and revive package
Hello,
Please share your website URL here so we can take a closer look at the issue. Also, please share the affected page URL.
Looking forward to helping you with this one.
I did send my login info yesterday and today when I woke up I found my site broken. when I deactivate Rankmath everything goes back to normal. Did anyone from your team try something to correct my problem?
Hello,
We were unable to log in to your site before as the login information you have shared is incomplete.
However, since you mentioned that activating Rank Math is breaking your site, then we may also need FTP access so we can revert any changes immediately and investigate this issue further.
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.