The activation of this (amber yellow) "warning" indicates that the hands free system has detected that the battery that permits the active key (1, fig. 62) To communicate and turn the vehicle on is almost discharged.
Note
In this case, ducati recommends replacing the battery as soon as possible as described in the paragraph "replacing the active key battery" (page 88).

Hands free key (hf) not recognised
High engine coolant temperatureStored lap erase function
This function erases the stored laps.
To access the function it is necessary to view the "setting" menu page 48, using
button (1, fig. 14) ?"" or (2, fig.
14) ?"" select the "lap" function and
press the reset button
(12, fig. 12) To go to next page.
...
Checking the coolant level
To the specified intervals in the "scheduled maintenance chart" (sect. 4 - 2)
Check the coolant level contained in
the expansion reservoir, on the right side of the vehicle.
The coolant level must be between the max. And min marks on the tank.
If the level is low, top up with the recommende ...
Side stand
Important
Before lowering the side stand, check that the ground
is sufficiently even and firm.
Do not park on soft or pebbled ground or on asphalt melted
by the sun heat and similar or the motorcycle may fall over.
When parking on a slope, always park with the rear wheel on
the downhill sid ...