self destructing iOS app

I finished everything, but when i run it at very end, i click "log out" and it crashes and shows this ERROR:

[LoginViewController setMessage:]: unrecognized selector sent to instance 0x10af82580 2014-03-12 18:25:27.739 MyApp[2203:70b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[LoginViewController setMessage:]: unrecognized selector sent to instance 0x10af82580' *** First throw call stack: ( 0 CoreFoundation 0x0000000102af2795 exceptionPreprocess + 165 1 libobjc.A.dylib 0x0000000102855991 objc_exception_throw + 43 2 CoreFoundation 0x0000000102b83bad -[NSObject(NSObject) doesNotRecognizeSelector:] + 205 3 CoreFoundation 0x0000000102ae409d ___forwarding_ + 973 4 CoreFoundation 0x0000000102ae3c48 CF_forwarding_prep_0 + 120 5 myApp 0x0000000100005a28 -[InboxViewController prepareForSegue:sender:] + 472 6 UIKit 0x0000000101948302 -[UIStoryboardSegueTemplate _perform:] + 134 7 myApp 0x0000000100004f0b -[InboxViewController viewDidLoad] + 299 8 UIKit 0x00000001015a3fe4 -[UIViewController loadViewIfRequired] + 562 9 UIKit 0x00000001015c468d -[UINavigationController _layoutViewController:] + 44 10 UIKit 0x00000001015c4b9d -[UINavigationController _updateScrollViewFromViewController:toViewController:] + 216 11 UIKit 0x00000001015c4c9d -[UINavigationController _startTransition:fromViewController:toViewController:] + 83 12 UIKit 0x00000001015c5a47 -[UINavigationController _startDeferredTransitionIfNeeded:] + 547 13 UIKit 0x00000001015c64f8 -[UINavigationController __viewWillLayoutSubviews] + 43 14 UIKit 0x00000001016da7e1 -[UILayoutContainerView layoutSubviews] + 202 15 UIKit 0x0000000101513b27 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 354 16 QuartzCore 0x0000000100fc1a22 -[CALayer layoutSublayers] + 151 17 QuartzCore 0x0000000100fb6589 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 363 18 QuartzCore 0x0000000100fc1956 -[CALayer layoutIfNeeded] + 162 19 UIKit 0x00000001015b3fc2 -[UIViewController window:setupWithInterfaceOrientation:] + 264 20 UIKit 0x00000001014f2b4d -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:isRotating:] + 4360 21 UIKit 0x00000001014f1a3f -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:] + 36 22 UIKit 0x00000001014f198f -[UIWindow _setRotatableViewOrientation:updateStatusBar:duration:force:] + 101 23 UIKit 0x00000001014f0c9e -[UIWindow _updateToInterfaceOrientation:duration:force:] + 377 24 UIKit 0x00000001015a7d4a -[UIViewController _tryBecomeRootViewControllerInWindow:] + 147 25 UIKit 0x00000001014eba87 -[UIWindow addRootViewControllerViewIfPossible] + 506 26 UIKit 0x00000001014ebbd5 -[UIWindow _setHidden:forced:] + 275 27 UIKit 0x00000001014f4ca2 -[UIWindow makeKeyAndVisible] + 51 28 UIKit 0x00000001014b30c8 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1449 29 UIKit 0x00000001014b6be8 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 660 30 UIKit 0x00000001014c7aab -[UIApplication handleEvent:withNewEvent:] + 3092 31 UIKit 0x00000001014c7f1e -[UIApplication sendEvent:] + 79 32 UIKit 0x00000001014b82be _UIApplicationHandleEvent + 618 33 GraphicsServices 0x00000001035c9bb6 _PurpleEventCallback + 762 34 GraphicsServices 0x00000001035c967d PurpleEventCallback + 35 35 CoreFoundation 0x0000000102a74819 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION_ + 41 36 CoreFoundation 0x0000000102a745ee __CFRunLoopDoSource1 + 478 37 CoreFoundation 0x0000000102a9dab3 __CFRunLoopRun + 1939 38 CoreFoundation 0x0000000102a9cf33 CFRunLoopRunSpecific + 467 39 UIKit 0x00000001014b64bd -[UIApplication _run] + 609 40 UIKit 0x00000001014b8043 UIApplicationMain + 1010 41 myApp 0x0000000100004db3 main + 115 42 libdyld.dylib 0x0000000104c3c5fd start + 1 43 ??? 0x0000000000000001 0x0 + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException (lldb)