We solved the problem with the Comment section, and things have become much easier. I’m so glad. It only required a small change in the settings but WordPress keeps fussing with the interface, and it’s a chore to figure out where everything is and how to change it.
However, that’s a poor excuse for not doing it earlier. I apologize to everybody for the inconvenience and for not having changed the settings earlier. Please keep pointing out things that don’t work because I see everything very differently from the app and don’t know what the experience is for everybody else.