Cannot reproduce the crash detected while viewing the application. Can someone help to understand this crash report?

Apple rejected our iphone app, showing that it fell on the iPad. We could not reproduce the crash on 3 different iPads and asked them to confirm. Apple returned, saying they crashed on the iPhone 4 (although the magazine shows iPhone 3). We cannot reproduce it ...

They crash with: Launch app. Choose Let me look around first. Application error.

The log that they sent to us does not seem to display any of their own application methods:

ncident Identifier: 8B5E90DE-99FD-4279-B634-2C777209F2B3
CrashReporter Key:   6e9ccd0fcdc29915ebe22fb7376bd343cdcc252a
Hardware Model:      iPhone3,1
Process:         Snug [297]
Path:            /var/mobile/Applications/DB3EFF00-7E5E-492A-9108-1341B6371B0D/Snug.app/Snug
Identifier:      Snug
Version:         ??? (???)
Code Type:       ARM (Native)
Parent Process:  launchd [1]

Date/Time:       2012-09-09 13:00:32.642 -0700
OS Version:      iPhone OS 5.1.1 (9B206)
Report Version:  104

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread:  6

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0:
0   libsystem_kernel.dylib          0x319e7660 __semwait_signal_nocancel + 24
1   libsystem_c.dylib               0x3410b4da nanosleep$NOCANCEL + 118
2   libsystem_c.dylib               0x340dd3a0 usleep$NOCANCEL + 44
3   libsystem_c.dylib               0x340dd2b6 abort + 118
4   Snug                            0x001f8760 uncaught_exception_handler + 12
5   CoreFoundation                  0x37830950 __handleUncaughtException + 68
6   libobjc.A.dylib                 0x3553533e _objc_terminate + 122
7   libc++abi.dylib                 0x36f683be safe_handler_caller(void (*)()) + 70
8   libc++abi.dylib                 0x36f6844a std::terminate() + 14
9   libc++abi.dylib                 0x36f6981e __cxa_rethrow + 82
10  libobjc.A.dylib                 0x355352a2 objc_exception_rethrow + 6
11  CoreFoundation                  0x37786506 CFRunLoopRunSpecific + 398
12  CoreFoundation                  0x37786366 CFRunLoopRunInMode + 98
13  GraphicsServices                0x33f45432 GSEventRunModal + 130
14  UIKit                           0x31532cce UIApplicationMain + 1074
15  Snug                            0x000f590c main (main.m:16)
16  Snug                            0x000f58c0 start + 32

Thread 1 name:  Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0   libsystem_kernel.dylib          0x319d73a8 kevent + 24
1   libdispatch.dylib               0x3095cea4 _dispatch_mgr_invoke + 708
2   libdispatch.dylib               0x3095cbc2 _dispatch_mgr_thread + 30

Thread 2:
0   libsystem_kernel.dylib          0x319e7cd4 __workq_kernreturn + 8
1   libsystem_c.dylib               0x3409ff36 _pthread_wqthread + 610
2   libsystem_c.dylib               0x3409fcc8 start_wqthread + 0

Thread 3:
0   libsystem_kernel.dylib          0x319e7cd4 __workq_kernreturn + 8
1   libsystem_c.dylib               0x3409ff36 _pthread_wqthread + 610
2   libsystem_c.dylib               0x3409fcc8 start_wqthread + 0

Thread 4 name:  WebThread
Thread 4:
0   libsystem_kernel.dylib          0x319d7004 mach_msg_trap + 20
1   libsystem_kernel.dylib          0x319d71fa mach_msg + 50
2   CoreFoundation                  0x378043ec __CFRunLoopServiceMachPort + 120
3   CoreFoundation                  0x37803124 __CFRunLoopRun + 876
4   CoreFoundation                  0x3778649e CFRunLoopRunSpecific + 294
5   CoreFoundation                  0x37786366 CFRunLoopRunInMode + 98
6   WebCore                         0x3312fc9c RunWebThread(void*) + 396
7   libsystem_c.dylib               0x340a572e _pthread_start + 314
8   libsystem_c.dylib               0x340a55e8 thread_start + 0

Thread 5 name:  com.apple.NSURLConnectionLoader
Thread 5:
0   libsystem_kernel.dylib          0x319d7004 mach_msg_trap + 20
1   libsystem_kernel.dylib          0x319d71fa mach_msg + 50
2   CoreFoundation                  0x378043ec __CFRunLoopServiceMachPort + 120
3   CoreFoundation                  0x37803124 __CFRunLoopRun + 876
4   CoreFoundation                  0x3778649e CFRunLoopRunSpecific + 294
5   CoreFoundation                  0x37786366 CFRunLoopRunInMode + 98
6   Foundation                      0x38016bb2 +[NSURLConnection(Loader) _resourceLoadLoop:] + 302
7   Foundation                      0x38016a7a -[NSThread main] + 66
8   Foundation                      0x380aa58a __NSThread__main__ + 1042
9   libsystem_c.dylib               0x340a572e _pthread_start + 314
10  libsystem_c.dylib               0x340a55e8 thread_start + 0

Thread 6 Crashed:
0   libsystem_kernel.dylib          0x319e7cd4 __workq_kernreturn + 8
1   libsystem_c.dylib               0x3409ff36 _pthread_wqthread + 610
2   libsystem_c.dylib               0x3409fcc8 start_wqthread + 0

Thread 7:
0   libsystem_kernel.dylib          0x319e7cd4 __workq_kernreturn + 8
1   libsystem_c.dylib               0x3409ff36 _pthread_wqthread + 610
2   libsystem_c.dylib               0x3409fcc8 start_wqthread + 0

Thread 8:
0   libsystem_kernel.dylib          0x319e7cd4 __workq_kernreturn + 8
1   libsystem_c.dylib               0x3409ff36 _pthread_wqthread + 610
2   libsystem_c.dylib               0x3409fcc8 start_wqthread + 0

Thread 9 name:  com.apple.CFSocket.private
Thread 9:
0   libsystem_kernel.dylib          0x319e7570 __select + 20
1   CoreFoundation                  0x3780863a __CFSocketManager + 726
2   libsystem_c.dylib               0x340a572e _pthread_start + 314
3   libsystem_c.dylib               0x340a55e8 thread_start + 0

Thread 6 crashed with ARM Thread State:
    r0: 0x00000004    r1: 0x00000000      r2: 0x00000000      r3: 0x00000000
    r4: 0x0c8cc800    r5: 0x0036a08c      r6: 0x04339000      r7: 0x04338fe0
    r8: 0x3f29fd30    r9: 0x00000000     r10: 0x3f29fd50     r11: 0x00000000
    ip: 0x00000170    sp: 0x04338fc0      lr: 0x3409ff3d      pc: 0x319e7cd4
  cpsr: 0x40000010

Can someone enlighten us with this crash message?

UPDATE:

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