Error 0x87C51003

Value: -2017128445 | 0x87C51003 | 2277838851

What does it mean ?

UTC_E_AOT_NOT_RUNNING  
The always-on-trace is not running
Value: 4099 | 0x1003 | 0b0001000000000011

Where does it come from ?

FACILITY_UTC  
Diagnostic Tracking (Service utcsvc "DiagTrack")
Value: 1989 | 0x7C5 | 0b11111000101

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