Hello,
Thank you for contacting Rank Math support. We are sorry to hear that you are having trouble with robots.txt blocking your pages.
To better assist you, could you please send us the URLs of the pages that are being blocked by robots.txt? This will help us to diagnose the problem and find a solution for you.
Thank you for your patience and cooperation. We look forward to hearing from you soon.
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Hello,
Thank you for getting back to us.
We just checked your robots.txt file and it does not have any rule that could be blocking these URLs. In fact, we can confirm that the pages are actually indexed on Google right now. See screenshot:

This could be a false negative from Google Search Console and you can
simply ignore it, it would most likely clear up when next Google crawls your site.
Thank you for your patience and cooperation
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.