How can I know why it crashes?

My application works perfectly in my personal iphone. I sent it to the appstore and they say it crashes while connected to a WiFi or 3G network. Does it make sense? DOnt know what to do. This is the log

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
0x33a50ef2 0x33a20000 + 200434 11 CoreFoundation
0x33a50d10 0x33a20000 + 199952 12 balonmano
0x000039c4 0x1000 + 10692 13 balonmano
0x0006522c 0x1000 + 410156 14 balonmano
0x000024dc 0x1000 + 5340 15 balonmano
0x0000720c 0x1000 + 25100 16 CoreFoundation
0x33a6bcfc 0x33a20000 + 310524 17 CoreFoundation
0x33a6bbce 0x33a20000 + 310222 18 balonmano
0x0005f93c 0x1000 + 387388 19 balonmano
0x0005c7c8 0x1000 + 374728 20 CoreFoundation
0x33a67fe6 0x33a20000 + 294886 21 balonmano
0x000b9a50 0x1000 + 756304 22 balonmano
0x000ba674 0x1000 + 759412 23 balonmano
0x000c5ba0 0x1000 + 805792 24 UIKit 0x3207b34e 0x32062000 + 103246 25 UIKit
0x3207acc8 0x32062000 + 101576 26 UIKit
0x32065fc0 0x32062000 + 16320 27 UIKit
0x32065900 0x32062000 + 14592 28 GraphicsServices
0x33b0eefc 0x33b0a000 + 20220 29 CoreFoundation
0x33a556f8 0x33a20000 + 218872 30 CoreFoundation
0x33a556bc 0x33a20000 + 218812 31 CoreFoundation
0x33a47f76 0x33a20000 + 163702 32 CoreFoundation
0x33a47c80 0x33a20000 + 162944 33 CoreFoundation
0x33a47b88 0x33a20000 + 162696 34 GraphicsServices
0x33b0e4a4 0x33b0a000 + 17572 35 GraphicsServices
0x33b0e550 0x33b0a000 + 17744 36 UIKit
0x32099322 0x32062000 + 226082 37 UIKit
0x32096e8c 0x32062000 + 216716 38 balonmano
0x0000242c 0x1000 + 5164 39 balonmano
0x00002398 0x1000 + 5016

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
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 3: 0 libSystem.B.dylib
0x33bd79e0 0x33b5c000 + 506336 1
libSystem.B.dylib
0x33bd7364 0x33b5c000 + 504676 2
libSystem.B.dylib
0x33bcf970 0x33b5c000 + 473456

Thread 4: 0 libSystem.B.dylib
0x33bd79e0 0x33b5c000 + 506336 1
libSystem.B.dylib
0x33bd7364 0x33b5c000 + 504676 2
libSystem.B.dylib
0x33bcf970 0x33b5c000 + 473456

Thread 5: 0 libSystem.B.dylib
0x33b5d268 0x33b5c000 + 4712 1
libSystem.B.dylib
0x33b5f354 0x33b5c000 + 13140 2
AudioToolbox
0x31714b96 0x3164f000 + 809878 3
AudioToolbox
0x316501d2 0x3164f000 + 4562 4
libSystem.B.dylib
0x33bd6886 0x33b5c000 + 501894 5
libSystem.B.dylib
0x33bcba88 0x33b5c000 + 457352

Thread 6: 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
AudioToolbox
0x316504ba 0x3164f000 + 5306 7
AudioToolbox
0x31663306 0x3164f000 + 82694 8
AudioToolbox
0x316501d2 0x3164f000 + 4562 9
libSystem.B.dylib
0x33bd6886 0x33b5c000 + 501894 10 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: 0x0024bedc r7: 0x2fdfdc08 r8: 0x3237db67 r9: 0x00000065 r10: 0x00000007 r11: 0x33479455 ip: 0x00000025 sp: 0x2fdfdc08 lr: 0x33bd52cb pc: 0x33bd52d4
cpsr: 0x000f0010

Binary Images: 0x1000 - 0xeefff +balonmano armv6 <9e8d6823acc4699f108a1766b1dc30e8> /var/mobile/Applications/D7FD7DEB-63C6-4F24-BC83-60EFCDA2BA07/balonmano.app/balonmano 0x1f7000 - 0x1f8fff dns.so armv7 /usr/lib/info/dns.so 0x2fe00000 - 0x2fe27fff dyld armv7 <06e6959cebb4a72e66c833e26ae64d26> /usr/lib/dyld 0x30005000 - 0x30006fff CoreSurface armv7 /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface 0x30007000 - 0x300abfff IMGSGX535GLDriver armv7 <03ce082398774b1c545d08b64081d82e> /System/Library/Extensions/IMGSGX535GLDriver.bundle/IMGSGX535GLDriver 0x300bd000 - 0x301fafff MediaToolbox armv7 /System/Library/PrivateFrameworks/MediaToolbox.framework/MediaToolbox 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 /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 0x30d61000 - 0x30e4afff GLEngine armv7 <305ddfcddb54d00acd8e2ca9005496c8> /System/Library/Frameworks/OpenGLES.framework/GLEngine.bundle/GLEngine 0x31266000 - 0x3129cfff CoreText armv7 /System/Library/Frameworks/CoreText.framework/CoreText 0x313e7000 - 0x313e9fff MobileInstallation armv7 <8e6b0d9f642be06729ffdaaee97053b0> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation 0x31451000 - 0x31464fff libmis.dylib armv7 <855aefc263c6c20e6cf8723ea36125a2> /usr/lib/libmis.dylib 0x314ad000 - 0x314b8fff libz.1.dylib armv7 /usr/lib/libz.1.dylib 0x31633000 - 0x31634fff DataMigration armv7 /System/Library/PrivateFrameworks/DataMigration.framework/DataMigration 0x31635000 - 0x3164afff OpenAL armv7 <8ea22c729b71c6e7e19566b91a03afd2> /System/Library/Frameworks/OpenAL.framework/OpenAL 0x3164f000 - 0x31788fff AudioToolbox armv7 <657b327f2ceee9f22f9474f2f9bddbe6> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox 0x317ce000 - 0x317d3fff libMobileGestalt.dylib armv7 <5f73c7138ee1cb7103a98aec99f9ed88> /usr/lib/libMobileGestalt.dylib 0x31947000 - 0x3194ffff MobileWiFi armv7 /System/Library/PrivateFrameworks/MobileWiFi.framework/MobileWiFi 0x31950000 - 0x31966fff EAP8021X armv7 <36659ec2b9def7b5798a05327e369247> /System/Library/PrivateFrameworks/EAP8021X.framework/EAP8021X 0x319b5000 - 0x319bbfff liblockdown.dylib armv7 <5bbd9b3f5cfece328f80c403a8805ce9> /usr/lib/liblockdown.dylib 0x319d7000 - 0x319dafff ApplePushService armv7 <9d1eb7b11f0f146c941efbab2c055606> /System/Library/PrivateFrameworks/ApplePushService.framework/ApplePushService 0x31a3f000 - 0x31a7cfff CoreMedia armv7 <4ea4d349e886206d1ecf5bae870f3f04> /System/Library/Frameworks/CoreMedia.framework/CoreMedia 0x31a97000 - 0x31b2afff ImageIO armv7 <5b5a294d4250eff866fdbf891b1e8b34> /System/Library/Frameworks/ImageIO.framework/ImageIO 0x31b40000 - 0x31b80fff CoreAudio armv7 /System/Library/Frameworks/CoreAudio.framework/CoreAudio 0x31b81000 - 0x31b96fff libresolv.9.dylib armv7 /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 0x32059000 - 0x32061fff MobileBluetooth armv7 <6d6c62f52219d27be50f1d7c39a68dc6> /System/Library/PrivateFrameworks/MobileBluetooth.framework/MobileBluetooth 0x32062000 - 0x323e3fff UIKit armv7 /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 0x3262e000 - 0x32671fff ManagedConfiguration armv7 <27ac7f05482a8aa9977150f34f9be6eb> /System/Library/PrivateFrameworks/ManagedConfiguration.framework/ManagedConfiguration 0x32ac8000 - 0x32acafff libgcc_s.1.dylib armv7 /usr/lib/libgcc_s.1.dylib 0x32ad8000 - 0x32adffff libbz2.1.0.dylib armv7 <2989ea7a5cad2cfe91bd632b041d0ff4> /usr/lib/libbz2.1.0.dylib 0x32b0a000 - 0x32b44fff IOKit armv7 /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit 0x32b45000 - 0x32b7cfff Security armv7 /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 0x32e8a000 - 0x32e8dfff CaptiveNetwork armv7 /System/Library/PrivateFrameworks/CaptiveNetwork.framework/CaptiveNetwork 0x32f24000 - 0x32f55fff VideoToolbox armv7 /System/Library/PrivateFrameworks/VideoToolbox.framework/VideoToolbox 0x32f67000 - 0x32f71fff AccountSettings armv7 <19c79f81d5d55fe2e6b618fcdc28258e> /System/Library/PrivateFrameworks/AccountSettings.framework/AccountSettings 0x32f72000 - 0x32f7ffff OpenGLES armv7 /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 /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 /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface 0x33476000 - 0x33537fff libobjc.A.dylib armv7 /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 /System/Library/Frameworks/CoreGraphics.framework/Resources/libRIP.A.dylib 0x33980000 - 0x33980fff vecLib armv7 /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 /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag 0x33b5c000 - 0x33c6dfff libSystem.B.dylib armv7 <138a43ab528bb428651e6aa7a2a7293c> /usr/lib/libSystem.B.dylib 0x33c95000 - 0x33d36fff Celestial armv7 /System/Library/PrivateFrameworks/Celestial.framework/Celestial 0x33d6b000 - 0x33d94fff MobileCoreServices armv7 <54484a513761868149405df7fc29b5c0> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices 0x33d95000 - 0x33d99fff AssetsLibraryServices armv7 /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 /usr/lib/libxml2.2.dylib 0x3451f000 - 0x3460cfff libiconv.2.dylib armv7 /usr/lib/libiconv.2.dylib 0x34613000 - 0x34625fff PersistentConnection armv7 /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConnection 0x3464e000 - 0x34764fff libicucore.A.dylib armv7 /usr/lib/libicucore.A.dylib 0x34774000 - 0x347b3fff libGLImage.dylib armv7 /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib 0x347d9000 - 0x34855fff AVFoundation armv7 <4c7356c795e01bd5c21b00a409a07476> /System/Library/Frameworks/AVFoundation.framework/AVFoundation 0x34867000 - 0x34886fff Bom armv7 <0f5fd6057bad5e1677869500d636821f> /System/Library/PrivateFrameworks/Bom.framework/Bom 0x34887000 - 0x348c9fff CoreTelephony armv7 <96d3af505b9f2887e62c7e99c157733e> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony 0x348ca000 - 0x348ccfff CrashReporterSupport armv7 <30a5f1edcdb9ffe868a620199a4cbe12> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport

Thanks for your help.

You should symbolicate this crashlog to see what is happening in your application. Did you save your app binary and dSYMs?

To symbolicate crashlog, you can use my way. Add following line to ~/.bash_profile:

alias scall="find . -name '*.crash' -exec /Developer/Platforms/iPhoneOS.platform/Developer/Library/PrivateFrameworks/DTDeviceKit.framework/Versions/A/Resources/symbolicatecrash {} \;"

Put your application binary, dSYM and crashlogs (each crashlog in one file with .crash suffix) and call scall. It will symbolicate all your crashlogs in current directory.