"The update cannot be installed on this computer."

Any idea whats going on here? I think I've got all the right settings. Mid 2012 13" MBP running catalina.

https://preview.redd.it/bngf96cxf6xd1.png?width=801&format=png&auto=webp&s=9a5d7122a35c7190555a9bd6a2fd75f1a6fe4a17