Sorry to hear about the inconvenience, can you please share valid WP-ADMIN Login details of your Site in the below listed format on which you are facing the issue so that we can proceed further and check the issue on your Site and assist you accordingly.
Sorry to say but as your Site is Live so we think it is not safe to debug this issue on a Live Site.
If possible, kindly provide a Staging Site along with the debugging permission where you can duplicate this issue and share the WP-ADMIN Login details of that Site too so that we can look into this further and assist you accordingly.