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.
Please share the screenshot here so we can check as well. You can use this tool to upload the image and send here the link.
However, I’ve checked your homepage using External SEO Analyzer, and there are 3 images that do not have alt attributes. You may need to add them to your media gallery on your WordPress dashboard.
Then, head over to Rank Math > Status & Tools > Database Tools > and click the Clear SEO Analysis and Remove Transients buttons to flush the SEO Analysis cache

Please note that some options are only available when you enable the Advanced Mode in Rank Math. If it’s not showing, you must have chosen to use the Easy Mode. Please follow the steps in this link to switch to Advanced Mode:
https://rankmath.com/kb/advanced-mode/
Once done, clear your website’s cache and Start again the sitewide analysis in Rank Math > SEO Analysis.
I hope that helps.
Thank you.
hello,
your advice to click the Clear SEO Analysis and Remove Transients buttons made all the difference. instead of eleven, i now only have three images that do not have alt attributes. (as you mention in your message.) so you answered my question and i thank you!
Hello,
You’re welcome.
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 us 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 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.