Preference Error: Could not load Security & Privacy preference pane.
Before updating to macOS Catalina 10.15.7 on my Mac mini (Late 2012), every preference pane worked, and I could access the Security & Privacy section.
After updating, I get the message "Preference Error: Could not load Security & Privacy preference pane." I tried opening some of the other panes, and some of them don't work either.
I tried going into safe boot mode and restarting but that didn't work.
Any ideas on how I can fix this problem?
Mac mini, macOS 10.15