Hello,
Thank you for your query and we are so sorry about the trouble this must have caused.
Sorry but we cannot access the screenshot you provided because the folder is not accessible. Kindly set the drive to viewable to public.
Kindly check this article that discuss why Rank Math is not able to detect the Table of Contents and what you can do about it: https://rankmath.com/kb/table-of-contents-not-detected/
If you are using Rank Math’s TOC Block, please make sure that you haven’t excluded the headings in the settings of the TOC block in the posts:

If the issue persists even when no heading is excluded, please follow this guide to confirm if the issue is coming from a plugin conflict: https://rankmath.com/kb/check-plugin-conflicts/
Let us know how that goes. Looking forward to helping you.
Hello,
I tried TS as KBA however it is the same.
I have updated the sensitive data as requested. Can you please check further?
Thank you.
Hello, Issue is resolved now.
Thank you very much!!
Hello,
Thank you for the update.
We are super happy that this issue is already resolved. If you have any other questions in the future, know that we are here to help you.
If you don’t mind me asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/#new-post about your overall experience with Rank Math? We appreciate your time and patience.
If you do have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.