我收到了崩溃关于崩溃发生几次的崩溃报告，但我不知道从哪里开始。 我能够在我的应用程序中看到的唯一一件事就是AppDelegate，看起来阵列出了问题，但我应该在哪里看？
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x39720f46 objc_msgSend + 5
1 Foundation 0x2bcec8e7 -[NSMutableRLEArray replaceObjectsInRange:withObject:length:] + 370
2 Foundation 0x2bd06b6b -[NSConcreteMutableAttributedString addAttribute:value:range:] + 266
3 UIFoundation 0x36792d07 -[NSStringDrawingTextStorage addAttribute:value:range:] + 50
4 UIFoundation 0x3677ced7 -[NSMutableAttributedString(NSMutableAttributedStringKitAdditions) fixFontAttributeInRange:] + 1738
5 UIFoundation 0x3677c71b -[NSMutableAttributedString(NSMutableAttributedStringKitAdditions) fixAttributesInRange:] + 186
6 UIFoundation 0x36797c59 -[NSTextStorage invalidateAttributesInRange:] + 108
7 UIFoundation 0x36792b27 -[NSStringDrawingTextStorage processEditing] + 66
8 UIFoundation 0x36797995 -[NSTextStorage edited:range:changeInLength:] + 312
9 UIFoundation 0x367970fb -[NSConcreteNotifyingMutableAttributedString edited:range:changeInLength:] + 50
10 Foundation 0x2bcf2529 -[NSConcreteMutableAttributedString replaceCharactersInRange:withAttributedString:] + 328
11 UIFoundation 0x3679278d -[NSStringDrawingTextStorage textContainerForAttributedString:containerSize:lineFragmentPadding:] + 72
12 UIFoundation 0x3678ba7d __NSStringDrawingEngine + 7520
13 UIFoundation 0x367905bb -[NSAttributedString(NSExtendedStringDrawing) boundingRectWithSize:options:context:] + 914
14 UIKit 0x2ea2726b -[UILabel _updateScaledMetricsForRect:] + 618
15 UIKit 0x2e700b51 -[UILabel _drawTextInRect:baselineCalculationOnly:] + 448
16 UIKit 0x2e7684c9 -[UILabel drawTextInRect:] + 488
17 UIKit 0x2e7682d9 -[UILabel drawRect:] + 84
18 UIKit 0x2e76825d -[UIView(CALayerDelegate) drawLayer:inContext:] + 400
19 QuartzCore 0x2e12e33d -[CALayer drawInContext:] + 228
20 UIKit 0x2eb74689 -[_UILabelContentLayer drawInContext:] + 140
21 QuartzCore 0x2e11765b CABackingStoreUpdate_ + 2070
22 QuartzCore 0x2e1fccb9 ___ZN2CA5Layer8display_Ev_block_invoke + 52
23 QuartzCore 0x2e116e39 x_blame_allocations + 88
24 QuartzCore 0x2e116ad1 CA::Layer::display_() + 1160
25 QuartzCore 0x2e0fa729 CA::Layer::display_if_needed(CA::Transaction*) + 200
26 QuartzCore 0x2e0fa3ed CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 24
27 QuartzCore 0x2e0f9d81 CA::Context::commit_transaction(CA::Transaction*) + 224
28 QuartzCore 0x2e0f9b6f CA::Transaction::commit() + 434
29 QuartzCore 0x2e14d6e1 CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 524
30 IOMobileFramebuffer 0x33050c07 IOMobileFramebufferVsyncNotifyFunc + 90
31 IOKit 0x2bfea001 IODispatchCalloutFromCFMessage + 256
32 CoreFoundation 0x2b02624d __CFMachPortPerform + 132
33 CoreFoundation 0x2b0367cb __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 34
34 CoreFoundation 0x2b036767 __CFRunLoopDoSource1 + 346
35 CoreFoundation 0x2b034d69 __CFRunLoopRun + 1608
36 CoreFoundation 0x2af81201 CFRunLoopRunSpecific + 476
37 CoreFoundation 0x2af81013 CFRunLoopRunInMode + 106
38 GraphicsServices 0x32a52201 GSEventRunModal + 136
39 UIKit 0x2e74da09 UIApplicationMain + 1440
40 MyApp 0x00264ee4 main (AppDelegate.swift:16)
41 libdyld.dylib 0x39cc6aaf start + 2
知道如何进一步使用那个吗？