How to identify and fix this crash?

I'm currently using analytics from AppCenter(MS), and there is a bug that is occurring very frequently but with no clue to what it can be, just saying AppDelegate.swift (L:20), witch means declaration of class.. i'll put all relevant logs, so if anyone can help me, i'll appreciate!

PS: I'm using AppAuth pod to manager login, already checked out all possible error cases. (code -2 to -15) I'm firing an event to AppCenter to register those events from error in Appauth library and comparing with crash log. Conclusion: there is no any relation each them.

The only relevant thing about the app it needs to user log at app launch and it's using a third party service from web (SSO)

Its work stuff and i'm not allowed to mention the name, so i changed app names in log from '##'

Log:

Incident Identifier: ##
CrashReporter Key:   ##
Hardware Model:      iPhone12,8
Process:         ## [20613]
Path:            /private/var/containers/Bundle/Application/##/##.app/##
Identifier:      ##
Version:         ##
Code Type:       arm64
Parent Process:  ??? [1]

Date/Time:       2021-09-30T12:33:19.999Z
Launch Time:     2021-09-30T12:31:05Z
OS Version:      iPhone OS 14.4 (18D52)
Report Version:  104

Exception Type:  SIGSEGV
Exception Codes: SEGV_ACCERR at 0x6d6f633c6e6f6974
Crashed Thread:  0

Thread 0 Crashed:
0   libobjc.A.dylib                      0x0000000198aee018 objc_release + 8
1   SafariServices                       0x000000019ecf2e38 __75-[SFAuthenticationViewController dismissViewControllerAnimated:completion:]_block_invoke + 36
2   UIKitCore                            0x0000000185c274b8 -[UIPresentationController transitionDidFinish:] + 1016
3   UIKitCore                            0x0000000185c2bca4 __56-[UIPresentationController runTransitionForCurrentState]_block_invoke.528 + 208
4   UIKitCore                            0x0000000185d708f8 -[_UIViewControllerTransitionContext completeTransition:] + 108
5   UIKitCore                            0x0000000186972d28 -[UITransitionView notifyDidCompleteTransition:] + 240
6   UIKitCore                            0x00000001869729d4 -[UITransitionView _didCompleteTransition:] + 1132
7   UIKitCore                            0x00000001869aa8ec -[UIViewAnimationBlockDelegate _didEndBlockAnimation:finished:context:] + 720
8   UIKitCore                            0x000000018697cc08 -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 244
9   UIKitCore                            0x000000018697d170 -[UIViewAnimationState animationDidStop:finished:] + 244
10  UIKitCore                            0x000000018697d2d4 -[UIViewAnimationState animationDidStop:finished:] + 600
11  QuartzCore                           0x0000000186ee7474 CA::Layer::run_animation_callbacks(void*) + 276
12  libdispatch.dylib                    0x00000001836a8db0 _dispatch_client_callout + 16
13  libdispatch.dylib                    0x00000001836b67ac _dispatch_main_queue_callback_4CF + 832
14  CoreFoundation                       0x0000000183a3011c __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
15  CoreFoundation                       0x0000000183a2a120 __CFRunLoopRun + 2504
16  CoreFoundation                       0x0000000183a2921c CFRunLoopRunSpecific + 596
17  GraphicsServices                     0x000000019b5f5784 GSEventRunModal + 160
18  UIKitCore                            0x0000000186469ee8 -[UIApplication _run] + 1068
19  UIKitCore                            0x000000018646f75c UIApplicationMain + 164
20  ##                             0x00000001004bc1cc main (AppDelegate.swift:20)
21  libdyld.dylib                        0x00000001836e96b0 start + 0

Thread 1:
0   libsystem_kernel.dylib               0x00000001b1a87184 __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001cf5e876c start_wqthread + 4

Thread 2:
0   libsystem_kernel.dylib               0x00000001b1a87184 __workq_kernreturn + 8
1   libsystem_pthread.dylib              0x00000001cf5e876c start_wqthread + 4

....

Its work stuff and i'm not allowed to mention the name, so i changed app names in log from '##'

Please post the full crash report. See Posting a Crash Report for specific advice on how to do that, including advice on how to redact the name.

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

How to identify and fix this crash?
 
 
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