In some post faq added but when we edit that post this error shows but in new post when we add faq schema not showing.
Your site doesn’t include support for the “rank-math/faq-block” block. You can leave this block intact, convert its content to a Custom HTML block, or remove it entirely.
If the issue persists,assuming you are using the latest version of all the plugins and the themes (please update if not yet), it would seem like a conflict with one of the plugins or the theme you are using.
Only the site admin would know and your users won’t be affected by this troubleshooting.
If the issue persists, please record a video screencast using a tool like Loom showing the troubleshooting and 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: