我不知道这次崩溃。崩溃发生在各种屏幕上，有时没有任何动作。任何帮助，将不胜感激。提前谢谢。
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000c
Triggered by Thread: 0
Thread 0 Crashed:
0 libobjc.A.dylib 0x3b3a1626 objc_msgSend + 6
1 UIKit 0x33301b46 +[UIViewController _viewControllerForFullScreenPresentationFromView:] + 174
2 UIKit 0x33301614 -[UIWindow _scrollToTopViewsUnderScreenPointIfNecessary:resultHandler:] + 428
3 UIKit 0x3330143e -[_UIScrollsToTopInitiatorView touchesEnded:withEvent:] + 210
4 UIKit 0x3330134e -[UIStatusBar touchesEnded:withEvent:] + 334
5 UIKit 0x33255790 forwardTouchMethod + 228
6 UIKit 0x3310371c -[UIWindow _sendTouchesForEvent:] + 524
7 UIKit 0x330fe6e6 -[UIWindow sendEvent:] + 754
8 UIKit 0x330d38e8 -[UIApplication sendEvent:] + 192
9 UIKit 0x330d1f92 _UIApplicationHandleEventQueue + 7098
10 CoreFoundation 0x3087e258 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 12
11 CoreFoundation 0x3087d726 __CFRunLoopDoSources0 + 202
12 CoreFoundation 0x3087bf1a __CFRunLoopRun + 618
13 CoreFoundation 0x307e6f0a CFRunLoopRunSpecific + 518
14 CoreFoundation 0x307e6cee CFRunLoopRunInMode + 102
15 GraphicsServices 0x356e065e GSEventRunModal + 134
16 UIKit 0x33132168 UIApplicationMain + 1132
17 MyApp 0x0029c0a0 main (main.m:16)
18 libdyld.dylib 0x3b8a4ab4 start + 0