Hello,
Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.
There are a few more things you have to check. Before moving, make sure you have the updated version of Rank Math.
If your Analytics data in Rank Math is showing correctly, then there could be a wide range of reasons causing this issue, but most likely due to an incorrect configuration with Rank Math or Google Analytics.
To determine the issue, please follow this troubleshooting guide:
https://rankmath.com/kb/zero-search-traffic-error/
Hope this helps you. Looking forward to your update. We will love to assist you again.
Thank you.
Hello,
I have updated the sensitive data as requested. Can you please check further?
Thank you.
Hello,
Please reconnect the Google account, to regenerate the auth token from Google, by going to WordPress Dashboard > Rank Math > General Settings > Analytics and configure the Search Console and Analytics settings:

Once you reconnect and configure the Analytics settings, the data fetch should start automatically.
If the issue persists, 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.