The activation of this (amber yellow) "warning" indicates that the hands free system was not able to extract the steering lock.
Warning
In this case, ducati recommends turning the vehicle off and on (key-off / key-on) holding the handlebar pressed down to the end stop. If the signal remains (and the steering does not "release") contact a ducati dealer or authorised service centre.

High engine coolant temperature
Instrument panel diagnosisHands free key (hf) not recognised
The activation of this (amber yellow) "warning" indicates that the hands free
system does not detect the active key (1,
fig.62) Near the vehicle.
Note
Check that the active key (a) is near the vehicle (and has not been lost)
or that it works properly.
...
The hands free module
Introduction
The hands free module incorporates the control unit communicating with the
other nodes on the motorcycle, the on/off
button, the microswitches detecting full lock steering angle (for enabling
steering lock engagement) and the steering lock.
The module is sealed and its individu ...
Adjusting the steering head bearings
Excessive handlebar play or shaking forks in the steering head indicate that
the play in the steering head bearings
requires adjustment. Proceed as follows:
loosen the clamp screw (1) that holds the steering tube to the steering head.
Slacken the clamp screws (2) securing the steering head ...