I wonder what happened?
Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x2b50 objc_release + 16
1 libsystem_blocks.dylib 0x17e8 _Block_release + 200
2 libsystem_blocks.dylib 0x17e8 _Block_release + 200
3 Luxy 0xc4d0dc -[AFURLSessionManagerTaskDelegate .cxx_destruct] + 106 (AFURLSessionManager.m:106)
4 libobjc.A.dylib 0x7d28 object_cxxDestructFromClass(objc_object*, objc_class*) + 116
5 libobjc.A.dylib 0x4b74 objc_destructInstance + 80
6 libobjc.A.dylib 0xe1c8 _objc_rootDealloc + 80
7 Luxy 0xc4bdf8 -[AFURLSessionManagerTaskDelegate dealloc] + 152 (AFURLSessionManager.m:152)
8 libsystem_blocks.dylib 0x17e8 _Block_release + 200
9 libdispatch.dylib 0x4670 _dispatch_client_callout + 20
10 libdispatch.dylib 0x12bcc _dispatch_main_queue_callback_4CF + 1036
11 CoreFoundation 0x51d84 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16
12 CoreFoundation 0xbf5c __CFRunLoopRun + 2540
13 CoreFoundation 0x1f468 CFRunLoopRunSpecific + 600
14 GraphicsServices 0x138c GSEventRunModal + 164
15 UIKitCore 0x5195d0 -[UIApplication _run] + 1100
16 UIKitCore 0x297f74 UIApplicationMain + 364