a rich mixture means that the mixture is too rich.
which can be caused by

Programming Version Defective
Stuck Open Thermostat
Air Flow Sensor
O2 Sensor
Leaking Fuel Injector
Clogged Air Filter

Based on the shadow codes, it looks like the software may be a problem.

The oil pressure switch is not related to your service engine soon, however
The oil pressure switch fault is most likely caused by a break in the wiring to the switch, or the switch itself.

If the oil pressure light flickers at idle, some mechanics disconnect the switch.
What they dont know if there is a PuMA measures to replace the switch with a Motorrad oil pressure switch, increase the idle speed and use 5w-40 or 0w-40 oil as a "solution"