The other day I received a crash report.
The contents are as follows.
{"bug_type":"120","os_version":"iPhone OS 12.2 (16E227)"}
Incident Identifier: 1E6F6160-9B0D-4AE7-9494-3D02762C6291
CrashReporter Key: (null)
Date: 2019-05-28 04:17:47 +0900
OS Version: iPhone OS 12.2 (16E227)
assertiond: SpringBoard:50:50-9D35E76F-DB12-42BC-B981-B1006338F704 [FBSystemApp] [0x100a22f40] SystemIsActive == 255, held for 11:53:20
bluetoothd: com.apple.BTStack PreventUserIdleSystemSleep == 255, held for 00:00:02
Foreground Applications: (my application name)
Screen Brightness: 0.700000
Hardware Model: J71bAP
Awake Time: 11:53:36 (42815)
Standby Time: 11:55:20 (42919)
Partial Charge: 0
Capacity: 1
Voltage: 3570 mV
Voltage Droop Time: 0
Voltage Droop Transitions: 0
I was confused that why crash occurred.
so I want information bug type 120.
Thank you for taking the time to review this!