In addition to what I posted below, every app in the Webconfig shows "connection failure" in red next to the Additional Info widget. Clicking on the "Details" button inside the widget gives me the same db error:


The thing I noticed when I looked within /var/lib/rpm are that most of the files have a changed date and time of 02/27/2019 6:37:49 AM, which is when the errors started showing up in my system log: