Application fails to apple but works for me

I loaded an application to app store and they sent me an email telling me that the application crashes, but I run it on debug and release mode and it works, do you know what could be the problem?. They said that they did the next:

1. launch app
2. app crashes.

They also sent me a log with the results of compiling the app:

Incident Identifier: 343E23E8-5DA5-43E5-A962-F7CA82C50D25
CrashReporter Key:   d91f018f5afc31f948a80025c7a09bb112a3caf4
Hardware Model:      iPhone3,1
Process:         BooksPrice [4074]
Path:            /var/mobile/Applications/25B1C24E-4E96-449C-9A5E-B203C4F8E457    /BooksPrice.app/BooksPrice
Identifier:      BooksPrice
Version:         ??? (???)
Code Type:       ARM (Native)
Parent Process:  launchd [1]

Date/Time:       2010-12-20 15:46:55.184 -0800
OS Version:      iPhone OS 4.2.1 (8C148)
Report Version:  104

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

Thread 0 Crashed:
0   libSystem.B.dylib               0x33bd52d4 0x33b5c000 + 496340
1   libSystem.B.dylib               0x33bd52c4 0x33b5c000 + 496324
2   libSystem.B.dylib               0x33bd52b6 0x33b5c000 + 496310
3   libSystem.B.dylib               0x33be9d72 0x33b5c000 + 580978
4   libstdc++.6.dylib               0x31bdba20 0x31b97000 + 281120
5   libobjc.A.dylib                 0x3347c594 0x33476000 + 26004
6   libstdc++.6.dylib               0x31bd9df2 0x31b97000 + 273906
7   libstdc++.6.dylib               0x31bd9e46 0x31b97000 + 273990
8   libstdc++.6.dylib               0x31bd9f16 0x31b97000 + 274198
9   libobjc.A.dylib                 0x3347b4c4 0x33476000 + 21700
10  CoreFoundation                  0x33ac07c2 0x33a20000 + 657346
11  CoreFoundation                  0x33ac07fc 0x33a20000 + 657404
12  UIKit                           0x3224b77c 0x32062000 + 2004860
13  UIKit                           0x3224cb32 0x32062000 + 2009906
14  UIKit                           0x3209e86a 0x32062000 + 247914
15  UIKit                           0x3209a1f6 0x32062000 + 229878
16  UIKit                           0x32066484 0x32062000 + 17540
17  UIKit                           0x32065ec2 0x32062000 + 16066
18  UIKit                           0x32065900 0x32062000 + 14592
19  GraphicsServices                0x33b0eefc 0x33b0a000 + 20220
20  CoreFoundation                  0x33a556f8 0x33a20000 + 218872
21  CoreFoundation                  0x33a556bc 0x33a20000 + 218812
22  CoreFoundation                  0x33a47f76 0x33a20000 + 163702
23  CoreFoundation                  0x33a47c80 0x33a20000 + 162944
24  CoreFoundation                  0x33a47b88 0x33a20000 + 162696
25  UIKit                           0x32099302 0x32062000 + 226050
26  UIKit               开发者_运维技巧            0x32096e8c 0x32062000 + 216716
27  BooksPrice                      0x00002688 0x1000 + 5768
28  BooksPrice                      0x00002658 0x1000 + 5720

Thread 1:
0   libSystem.B.dylib               0x33b89974 0x33b5c000 + 186740
1   libSystem.B.dylib               0x33c33704 0x33b5c000 + 882436
2   libSystem.B.dylib               0x33c33174 0x33b5c000 + 881012
3   libSystem.B.dylib               0x33c32b98 0x33b5c000 + 879512
4   libSystem.B.dylib               0x33bd724a 0x33b5c000 + 504394
5   libSystem.B.dylib               0x33bcf970 0x33b5c000 + 473456

Thread 2:
0   libSystem.B.dylib               0x33bd79e0 0x33b5c000 + 506336
1   libSystem.B.dylib               0x33bd7364 0x33b5c000 + 504676
2   libSystem.B.dylib               0x33bcf970 0x33b5c000 + 473456

Thread 3:
0   libSystem.B.dylib               0x33b5d268 0x33b5c000 + 4712
1   libSystem.B.dylib               0x33b5f354 0x33b5c000 + 13140
2   CoreFoundation                  0x33a48648 0x33a20000 + 165448
3   CoreFoundation                  0x33a47ed2 0x33a20000 + 163538
4   CoreFoundation                  0x33a47c80 0x33a20000 + 162944
5   CoreFoundation                  0x33a47b88 0x33a20000 + 162696
6   WebCore                         0x304df124 0x30428000 + 749860
7   libSystem.B.dylib               0x33bd6886 0x33b5c000 + 501894
8   libSystem.B.dylib               0x33bcba88 0x33b5c000 + 457352

Thread 0 crashed with ARM Thread State:
    r0: 0x00000000    r1: 0x00000000      r2: 0x00000001      r3: 0x3eaf12e8
    r4: 0x00000006    r5: 0x31bd9989      r6: 0x00132a5c      r7: 0x2fdfe0f8
    r8: 0x3ea4f538    r9: 0x00000065     r10: 0x0012e4e0     r11: 0x00000001
    ip: 0x00000025    sp: 0x2fdfe0f8      lr: 0x33bd52cb      pc: 0x33bd52d4
  cpsr: 0x00000010

Binary Images:
    0x1000 -    0x16fff +BooksPrice armv7  <3ad1d403bf358cd48d63b5161cfbad47> /var/mobile/Applications/25B1C24E-4E96-449C-9A5E-B203C4F8E457/BooksPrice.app/BooksPrice
   0xa0000 -    0xa1fff  dns.so armv7  <fcefecb2d5e095ba88127eec3af57ec0> /usr/lib/info/dns.so
0x2fe00000 - 0x2fe27fff  dyld armv7  <06e6959cebb4a72e66c833e26ae64d26> /usr/lib/dyld
0x30005000 - 0x30006fff  CoreSurface armv7  <f7caaf43609cfe0e475dfe83790edb4d> /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface
0x301fc000 - 0x302e4fff  libGLProgrammability.dylib armv7  <1f478a71783cd7eb4ae9ef6f2dcea803> /System/Library/Frameworks/OpenGLES.framework/libGLProgrammability.dylib
0x303d1000 - 0x30426fff  libvDSP.dylib armv7  <9365fc6cae1bff737257e74faf3b1f26> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib
0x30428000 - 0x30a10fff  WebCore armv7  <d6bd9cf88ee82ab6b0e33e0ae1190772> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
0x30a28000 - 0x30ad5fff  JavaScriptCore armv7  <3f2df600942dc72aad312b3cc98ec479> /System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore
0x30c98000 - 0x30d57fff  CFNetwork armv7  <02fe0e30e54fffdcbbbd02e8cb812c3a> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x30d58000 - 0x30d60fff  libkxld.dylib armv7  <854e82fe66feef01e54c7c8a209851ac> /usr/lib/system/libkxld.dylib
0x31266000 - 0x3129cfff  CoreText armv7  <b9b5c21b2d2a28abc47842c78c026ddf> /System/Library/Frameworks/CoreText.framework/CoreText
0x313e7000 - 0x313e9fff  MobileInstallation armv7  <8e6b0d9f642be06729ffdaaee97053b0> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation
0x314ad000 - 0x314b8fff  libz.1.dylib armv7  <fabaddbcbc8c02bab0261df9d78e0e25> /usr/lib/libz.1.dylib
0x3164f000 - 0x31788fff  AudioToolbox armv7  <657b327f2ceee9f22f9474f2f9bddbe6> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x319b5000 - 0x319bbfff  liblockdown.dylib armv7  <5bbd9b3f5cfece328f80c403a8805ce9> /usr/lib/liblockdown.dylib
0x31a97000 - 0x31b2afff  ImageIO armv7  <5b5a294d4250eff866fdbf891b1e8b34> /System/Library/Frameworks/ImageIO.framework/ImageIO
0x31b40000 - 0x31b80fff  CoreAudio armv7  <f32e03ee4c68f0db23f05afc9a3cc94c> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
0x31b81000 - 0x31b96fff  libresolv.9.dylib armv7  <ea156820997ae9a2baf664d0f79f18d7> /usr/lib/libresolv.9.dylib
0x31b97000 - 0x31be1fff  libstdc++.6.dylib armv7  <53a6e7239c3908fa8c2915b65ff3b056> /usr/lib/libstdc++.6.dylib
0x31c9b000 - 0x31ca7fff  SpringBoardServices armv7  <137b75e19b2450c234dec88d538798ff> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices
0x31cb8000 - 0x31ceafff  AppSupport armv7  <47c8055ac99f187174ca373b702ffa68> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x31ceb000 - 0x31cf4fff  CoreVideo armv7  <2092d5deb6b234e04678b7c1878ccd81> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
0x31d30000 - 0x31d37fff  AggregateDictionary armv7  <71372c95d4af7af787d0682a939e40ac> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictionary
0x31f68000 - 0x31f88fff  PrintKit armv7  <02a9c6f4173a0673c4637a3b570345cd> /System/Library/PrivateFrameworks/PrintKit.framework/PrintKit
0x32062000 - 0x323e3fff  UIKit armv7  <de1cbd3219a74e4d41b30428f428e223> /System/Library/Frameworks/UIKit.framework/UIKit
0x32481000 - 0x32483fff  libAccessibility.dylib armv7  <3f0b58ea13d30f0cdb73f6ffe6d4e75c> /usr/lib/libAccessibility.dylib
0x3256d000 - 0x3261cfff  WebKit armv7  <644a1c6120578f896bed7121307aa2af> /System/Library/PrivateFrameworks/WebKit.framework/WebKit
0x3261e000 - 0x3262bfff  libbsm.0.dylib armv7  <0f4e595e6eb2170aceb729f32b5de8c2> /usr/lib/libbsm.0.dylib
0x32ac8000 - 0x32acafff  libgcc_s.1.dylib armv7  <e66758bcda6da5d7f9b54fa5c4de6da2> /usr/lib/libgcc_s.1.dylib
0x32ad8000 - 0x32adffff  libbz2.1.0.dylib armv7  <2989ea7a5cad2cfe91bd632b041d0ff4> /usr/lib/libbz2.1.0.dylib
0x32b0a000 - 0x32b44fff  IOKit armv7  <eb932cc42d60e55d9a4d0691bcc3d9ad> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x32b45000 - 0x32b7cfff  Security armv7  <cd28e102950634ae7167ddee9c686d36> /System/Library/Frameworks/Security.framework/Security
0x32bab000 - 0x32badfff  IOMobileFramebuffer armv7  <1040629f37795146c9dcac8ab1a868fc> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebuffer
0x32bae000 - 0x32e48fff  libLAPACK.dylib armv7  <2e77d87e96af938aacf0a6008e6fb89d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib
0x32f72000 - 0x32f7ffff  OpenGLES armv7  <a12565ffb5bb42e3019f1957cd4951d0> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
0x32fc8000 - 0x32ffbfff  AddressBook armv7  <7c87e0175c8649d6832419da8a1cfac1> /System/Library/Frameworks/AddressBook.framework/AddressBook
0x32ffc000 - 0x32ffffff  libGFXShared.dylib armv7  <3a385ed495379116abbe50bc8cd5a612> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib
0x331d0000 - 0x3323ffff  ProofReader armv7  <d2e62a8ab7e1460c7f6de8913c703e6d> /System/Library/PrivateFrameworks/ProofReader.framework/ProofReader
0x33393000 - 0x333defff  libBLAS.dylib armv7  <251c5ac7380802a16e30d827c027c637> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
0x333df000 - 0x333e2fff  IOSurface armv7  <deff02882166bf16d0765d68f0542cc8> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
0x33476000 - 0x33537fff  libobjc.A.dylib armv7  <aaf5671a35f9ac20d5846703dafaf4c6> /usr/lib/libobjc.A.dylib
0x335e8000 - 0x335e8fff  Accelerate armv7  <29dd5f17440bbb6e8e42e11b6fceda9a> /System/Library/Frameworks/Accelerate.framework/Accelerate
0x33619000 - 0x33738fff  Foundation armv7  <81d36041f04318cb51db5aafed9ce504> /System/Library/Frameworks/Foundation.framework/Foundation
0x33748000 - 0x33795fff  libsqlite3.dylib armv7  <55038e5c1d4d0dbdd94295e8cad7a9a4> /usr/lib/libsqlite3.dylib
0x33797000 - 0x337b0fff  libRIP.A.dylib armv7  <ee16b5cee12a8947c8e511ed51ae7fef> /System/Library/Frameworks/CoreGraphics.framework/Resources/libRIP.A.dylib
0x337ff000 - 0x33837fff  libCGFreetype.A.dylib armv7  <374bd566263e8929c10d50d6a6a48a46> /System/Library/Frameworks/CoreGraphics.framework/Resources/libCGFreetype.A.dylib
0x33980000 - 0x33980fff  vecLib armv7  <e53d234e808c77d286161095f92c58cf> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib
0x33a20000 - 0x33b06fff  CoreFoundation armv7  <01441e01f5141a50ee723362e59ca400> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x33b0a000 - 0x33b16fff  GraphicsServices armv7  <0099670dccd99466653956bf918d667a> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x33b43000 - 0x33b48fff  MobileKeyBag armv7  <cec3f3271fc267c32c169ed03e312d63> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x33b5c000 - 0x33c6dfff  libSystem.B.dylib armv7  <138a43ab528bb428651e6aa7a2a7293c> /usr/lib/libSystem.B.dylib
0x33d6b000 - 0x33d94fff  MobileCoreServices armv7  <54484a513761868149405df7fc29b5c0> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
0x33d95000 - 0x33d99fff  AssetsLibraryServices armv7  <e861a330d14702f148ca5133dcbe954c> /System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices
0x340c9000 - 0x340f8fff  SystemConfiguration armv7  <3f982c11b5526fc39a92d585c60d8a90> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x340f9000 - 0x341a7fff  QuartzCore armv7  <83a8e5f0033369e437069c1e758fed83> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
0x341c1000 - 0x342e1fff  CoreGraphics armv7  <2d7b40a7baca915ce78b1dd9a0d6433b> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
0x343c3000 - 0x3446cfff  libxml2.2.dylib armv7  <b3d82f80a777cb1434052ea2d232e3df> /usr/lib/libxml2.2.dylib
0x3451f000 - 0x3460cfff  libiconv.2.dylib armv7  <c72b45f471df092dbd849081f7a3ef53> /usr/lib/libiconv.2.dylib
0x3464e000 - 0x34764fff  libicucore.A.dylib armv7  <e7fbb2ac586567e574dc33d7bb5c4dc9> /usr/lib/libicucore.A.dylib
0x34774000 - 0x347b3fff  libGLImage.dylib armv7  <a7c117c92607a512823d307b8fdd0151> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
0x34867000 - 0x34886fff  Bom armv7  <0f5fd6057bad5e1677869500d636821f> /System/Library/PrivateFrameworks/Bom.framework/Bom
0x34887000 - 0x348c9fff  CoreTelephony armv7  <96d3af505b9f2887e62c7e99c157733e> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony

Thanks in advance.

Have you run the app on an actual device? When Apple rejects your app for crashes, they also explain how you can reproduce the crash, step-by-step.

If your app "supports", meaning you have set specific build settings for certain platforms, then you need to actually test it on that device.

You need to symbolicate the crash log, take a look at this post http://furbo.org/2008/08/08/symbolicatifination/

Try "Clean All" and then Build (don't forget to delete the app from your device and simulator) and see if the crash is happening on your device/simulator. It might be an assertion failure or un-handled exception.

p.s. You may rebuild and resubmit.