Crash _NSArrayM objectAtIndexedSubscript:]: index 0 beyond bounds for empty array

[revolutionkpi]

I have got a crash report from Fabric in the library IHKeyboardAvoiding version 2.6.0. The stack trace below:

Fatal Exception: NSRangeException

0  CoreFoundation                 0x1b329898c __exceptionPreprocess
1  libobjc.A.dylib                0x1b2fc10a4 objc_exception_throw
2  CoreFoundation                 0x1b32ee3f8 -[__NSCFString characterAtIndex:].cold.1
3  CoreFoundation                 0x1b3182c6c -[__NSArrayM objectAtIndexedSubscript:]
4  IHKeyboardAvoiding             0x1054f1730 +[IHKeyboardAvoiding applicationDidEnterBackground:] + 339 (IHKeyboardAvoiding.m:339)
5  CoreFoundation                 0x1b31f409c __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__
6  CoreFoundation                 0x1b31f40e4 ___CFXRegistrationPost1_block_invoke
7  CoreFoundation                 0x1b31f3444 _CFXRegistrationPost1
8  CoreFoundation                 0x1b31f30fc ___CFXNotificationPost_block_invoke
9  CoreFoundation                 0x1b316f43c -[_CFXNotificationRegistrar find:object:observer:enumerator:]
10 CoreFoundation                 0x1b31f2a4c _CFXNotificationPost
11 Foundation                     0x1b354f2d8 -[NSNotificationCenter postNotificationName:object:userInfo:]
12 UIKitCore                      0x1b72abd50 __47-[UIApplication _applicationDidEnterBackground]_block_invoke
13 UIKitCore                      0x1b6ca6da0 +[UIViewController _performWithoutDeferringTransitionsAllowingAnimation:actions:]
14 UIKitCore                      0x1b72abb0c -[UIApplication _applicationDidEnterBackground]
15 UIKitCore                      0x1b6a8171c __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke_2
16 UIKitCore                      0x1b6f113ec _UIScenePerformActionsWithLifecycleActionMask
17 UIKitCore                      0x1b6a812f8 __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke
18 UIKitCore                      0x1b6a80d50 -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:]
19 UIKitCore                      0x1b6a81124 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]
20 UIKitCore                      0x1b6a809e0 -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:]
21 UIKitCore                      0x1b68f5610 -[UIScene _invalidate]
22 UIKitCore                      0x1b74ceec4 -[UIWindowScene _invalidate]
23 UIKitCore                      0x1b72a2b20 -[UIApplication workspace:willDestroyScene:withTransitionContext:completion:]
24 UIKitCore                      0x1b6e64c10 -[UIApplicationSceneClientAgent scene:willInvalidateWithEvent:completion:]
25 FrontBoardServices             0x1b8331bdc -[FBSSceneImpl _callOutQueue_agent_willDestroyWithTransitionContext:completion:]
26 FrontBoardServices             0x1b8357b70 __84-[FBSWorkspaceScenesClient _queue_invalidateScene:withTransitionContext:completion:]_block_invoke_2
27 FrontBoardServices             0x1b833c0f8 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:]
28 FrontBoardServices             0x1b83579e8 __84-[FBSWorkspaceScenesClient _queue_invalidateScene:withTransitionContext:completion:]_block_invoke
29 libdispatch.dylib              0x1b2f66184 _dispatch_client_callout
30 libdispatch.dylib              0x1b2f0f038 _dispatch_block_invoke_direct$VARIANT$mp
31 FrontBoardServices             0x1b837b540 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__
32 FrontBoardServices             0x1b837b20c -[FBSSerialQueue _queue_performNextIfPossible]
33 FrontBoardServices             0x1b837b734 -[FBSSerialQueue _performNextFromRunLoopSource]
34 CoreFoundation                 0x1b32167e0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__
35 CoreFoundation                 0x1b3216738 __CFRunLoopDoSource0
36 CoreFoundation                 0x1b3215ed0 __CFRunLoopDoSources0
37 CoreFoundation                 0x1b321101c __CFRunLoopRun
38 CoreFoundation                 0x1b32108bc CFRunLoopRunSpecific
39 GraphicsServices               0x1bd07c328 GSEventRunModal
40 UIKitCore                      0x1b72a66d4 UIApplicationMain
41 MyApp                           0x1050801cc main + 14 (main.m:14)
42 libdyld.dylib                  0x1b309b460 start