iOS App Crash on Startup with EXC_CORPSE_NOTIFY exception - ios

Question

Xamarin based iOS Application crashed with following crash log in Release version. This issue observed in multiple (iPad Air, iPhoneX, iPhone 6s) devices. Not able to replicate this issue in debug or beta mode.
App Crashed before starting app log file. Not able to understand Crash Log. Would you help me to to identify the Crash Log and cause.
AppVariant: 1:10
Code Type: ARM-64 (Native)
Role: Non UI
Parent Process: launchd [1]
Date/Time: 2018-12-09 02:35:13.9818 -0500
Launch Time: 2018-12-09 02:35:10.8014 -0500
OS Version: iPhone OS 12.1 (16B92)
Baseband Version: 5.21.00
Report Version: 104
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Triggered by Thread: 0
Thread 0 name:
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x00000001bd76b104 __pthread_kill + 8
1 libsystem_pthread.dylib 0x00000001bd7e6070 pthread_kill$VARIANT$mp + 380 (pthread.c:1492)
2 libsystem_c.dylib 0x00000001bd6c2d78 abort + 140 (abort.c:94)
3 MyApp 0x0000000103ec9ca8 0x1025dc000 + 26139816 xamarin_printf (in MyApp) (runtime.m:2335)
4 MyApp 0x0000000103dcc464 0x1025dc000 + 25101412 mono_invoke_unhandled_exception_hook (in MyApp) (exception.c:1119)
5 MyApp 0x0000000103d83628 0x1025dc000 + 24802856 mono_handle_exception_internal (in MyApp) (mini-exceptions.c:2002)
6 MyApp 0x0000000103d823c0 0x1025dc000 + 24798144 mono_handle_exception (in MyApp) (mini-exceptions.c:2288)
7 MyApp 0x0000000103d7a084 0x1025dc000 + 24764548 mono_arm_throw_exception (in MyApp) (exceptions-arm64.c:411)
8 MyApp 0x0000000102d4e0c8 0x1025dc000 + 7807176 rethrow_exception (in MyApp) + 168
9 MyApp 0x00000001028de350 0x1025dc000 + 3154768 MyApp_Application_Main_string__ (in MyApp) (/:1)
10 MyApp 0x0000000102d1b798 0x1025dc000 + 7600024 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr (in MyApp) + 248
11 MyApp 0x0000000103d93968 0x1025dc000 + 24869224 mono_jit_runtime_invoke (in MyApp) (mini-runtime.c:2777)
12 MyApp 0x0000000103e10950 0x1025dc000 + 25381200 do_runtime_invoke (in MyApp) (object.c:2849)
13 MyApp 0x0000000103e13d54 0x1025dc000 + 25394516 do_exec_main_checked (in MyApp) (object.c:4726)
14 MyApp 0x0000000103d7678c 0x1025dc000 + 24749964 mono_jit_exec (in MyApp) (driver.g.c:1040)
15 MyApp 0x0000000103ed09e8 0x1025dc000 + 26167784 xamarin_main (in MyApp) (monotouch-main.m:0)
16 MyApp 0x000000010284dbac 0x1025dc000 + 2562988 main (in MyApp) (main.m:207)
17 libdyld.dylib

Answer 1

Device Logs was useful in this analysis. Device log had application crash information. Application was crashed due to null pointer in one of application thread.