Hello,
Thanks for getting in touch with me.
Please check the page source of your homepage and locate the tags that you are seeing in the failed alt text test.
The Add missing ALT attributes option only works for images added using the WP Editor. If the alt text is missing from the images added using your theme, you will need to edit the PHP files for that. Please get in touch with your theme provider and they will be able to provide you with exact instructions on that.
Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.
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.