Hello,
Thank you for contacting the support and sorry for any inconvenience that might have been caused due to that.
Upon investigating your site I have noticed that Rank Math is not updated. So please update Rank Math first.
And also noticed that there is an additional plugin, Google Analytics for WordPress by MonsterInsights for Analytics. You should only use one either that or Rank Math’s Google Analytics Module for tracking data. You have both activated at the same time.
Reconnect the account inside Rank Math by clicking here and ensure that you approve all the permission notices that shows up:
WP Dashboard >> Rank Math >> General Settings >> Analytics tab, and click the Reconnect link

Let the process complete and it might take around 30 minutes.
Now head over to WP Dashboard > Rank Math > Status & Tools > Database Tools and click the Rebuild Index for Analytics button.

Please check if the data shows up here:
/wp-admin/admin.php?page=rank-math-analytics#/

It would be better to assist you further if you share a screenshot direct from your Google Search Console. You can use online tools like https://imgbb.com/ or https://imgur.com/ for sharing screenshots.
We really look forward to helping you.
Thank you.
basically where is the error? is it rank math or google anlytic that the data is wrong?
Hello,
Thank you for getting in touch with us.
Actually, this may occur due to the misconfiguration of Google Analytics in Rank Math.
Could you please confirm that you have followed the steps stated above and after doing all steps, you are still facing the issue? Then we might take a closer look at your website.
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.