Crashes from Crashlytica

[fury21]

Hi.
I started receiving multiple crash reports in Firebase Crashlytics

Fatal Exception: NSInternalInconsistencyException
Modifications to the layout engine must not be performed from a background thread after it has been accessed from the main thread.

Fatal Exception: NSInternalInconsistencyException
0 CoreFoundation 0xec69c __exceptionPreprocess
1 libobjc.A.dylib 0x2bc80 objc_exception_throw
2 CoreAutoLayout 0x56c8 NSISSparseVectorAddTermWithPlaceValueCoefficientStartingIndex
3 CoreAutoLayout 0xa4e4 -[NSISEngine withBehaviors:performModifications:]
4 UIKitCore 0x50ac8 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke
5 UIKitCore 0x508a4 -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]
6 UIKitCore 0x4e944 -[UIView(AdditionalLayoutSupport) _initializeHostedLayoutEngine]
7 UIKitCore 0x4dae8 -[UIView(AdditionalLayoutSupport) _layoutEngineCreateIfNecessary]
8 UIKitCore 0x4d994 __120-[UIView(UIConstraintBasedLayout) _layoutEngine_didAddLayoutConstraint:roundingAdjustment:mutuallyExclusiveConstraints:]_block_invoke_2
9 UIKitCore 0x4d584 -[UIView _layoutEngine_didAddLayoutConstraint:roundingAdjustment:mutuallyExclusiveConstraints:]
10 UIKitCore 0x4d378 -[UIView _tryToAddConstraint:roundingAdjustment:mutuallyExclusiveConstraints:]
11 UIKitCore 0x4d258 -[UIView(UIConstraintBasedLayout) nsli_addConstraint:]
12 CoreAutoLayout 0xa284 +[NSLayoutConstraint _addOrRemoveConstraints:activate:]
13 UIKitCore 0x12b2f0 -[UINavigationController _setUpContentFocusContainerGuide]
14 UIKitCore 0x12b074 -[UINavigationController loadView]
15 UIKitCore 0x15548 -[UIViewController loadViewIfRequired]
16 UIKitCore 0x14048 -[UIViewController view]
17 UIKitCore 0xcaaa4 -[UINavigationController pushViewController:transition:forceImmediate:]
18 UIKitCore 0xca6f4 -[UINavigationController pushViewController:animated:]
19 Sofy 2.0 0x536418 -[UINavigationController(LNPopupSupportPrivate) _ln_pushViewController:animated:] + 1150 (UIViewController+LNPopupSupportPrivate.m:1150)
20 UIKitCore 0xc9634 -[UINavigationController initWithRootViewController:]
21 Sofy 2.0 0xa1034 MainCoordinator.mainTabBar(showFullAccessVC:) + 420 (MainCoordinator.swift:420)
22 Sofy 2.0 0x4f4e4 closure #1 in ReminderViewController.remindButtonAction() + 235 (ReminderViewController.swift:235)
23 Sofy 2.0 0xcee0c closure #1 in ScheduleManager.registerForNotifications(completion:) + 184 (ScheduleManager.swift:184)
24 Sofy 2.0 0x53b2c thunk for @escaping @callee_guaranteed (@unowned Bool, @guaranteed Error?) -> () ()
25 libdispatch.dylib 0x26a8 _dispatch_call_block_and_release
26 libdispatch.dylib 0x4300 _dispatch_client_callout
27 libdispatch.dylib 0xb894 _dispatch_lane_serial_drain
28 libdispatch.dylib 0xc3f8 _dispatch_lane_invoke
29 libdispatch.dylib 0x17004 _dispatch_root_queue_drain_deferred_wlh
30 libdispatch.dylib 0x16878 _dispatch_workloop_worker_thread
31 libsystem_pthread.dylib 0x1964 _pthread_wqthread
32 libsystem_pthread.dylib 0x1a04 start_wqthread

97% of devices received this error on iOS 17
LNPopupController version 2.14

What does this error mean? How can it be fixed? If possible, without updating to the latest version of the framework

[iDevelopper]

It looks like you need to update your app's UI on the main thread!

[fury21]

But in which place?