Missing UI elements (Log book and device event state viewer no longer showing)

Something strange happened to my system. I seem to have lost the Logbook item in in the sidebar.

There seems to be no way of getting to it from the settings menu also

Additionally there used to be a nice UI on devices that raise events show the state for the most recent event here

it used to be on the right I believe, when I click on the action entity in this device I there is no longer an entity page just this

Ive updated to 2024.4.3 but I was on 2024.4.1 when this started happening

Any idea what might cause these UI oddities?

I figured it out

I accidentally removed

default_config:

from my config.yaml.