There are 11 plugin updates available for a WordPress site, so I tried updating it.
However, when I do that I get an error:
Public and Private keys incorrect for <username>
I have made keys for my own user on the server, but that is not the problem I am asking about. The problem is that I cannot change any details in the Connection Information page (shown below). There are details already there, but they cannot be changed. I can select them, but I cannot delete or edit them. I have tried in different browsers.
What could be causing this? My WordPress account is set as an Administrator.