Log messages will follow once session has started...
2016-12-08 13:02:14.172 kacperdemo[52086:18161752] -[ViewController onShowSpecialOffer:]: unrecognized selector sent to instance 0x7f912be11ea0
2016-12-08 13:02:14.176 kacperdemo[52086:18161752] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[ViewController onShowSpecialOffer:]: unrecognized selector sent to instance 0x7f912be11ea0'
*** First throw call stack:
(
	0   CoreFoundation                      0x000000010f940d85 __exceptionPreprocess + 165
	1   libobjc.A.dylib                     0x000000010f3b2deb objc_exception_throw + 48
	2   CoreFoundation                      0x000000010f949d3d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
	3   CoreFoundation                      0x000000010f88fcfa ___forwarding___ + 970
	4   CoreFoundation                      0x000000010f88f8a8 _CF_forwarding_prep_0 + 120
	5   UIKit                               0x000000010fcf9a8d -[UIApplication sendAction:to:from:forEvent:] + 92
	6   UIKit                               0x000000010fe6ce67 -[UIControl sendAction:to:forEvent:] + 67
	7   UIKit                               0x000000010fe6d143 -[UIControl _sendActionsForEvents:withEvent:] + 327
	8   UIKit                               0x000000010fe6c263 -[UIControl touchesEnded:withEvent:] + 601
	9   UIKit                               0x000000010fd6c99f -[UIWindow _sendTouchesForEvent:] + 835
	10  UIKit                               0x000000010fd6d6d4 -[UIWindow sendEvent:] + 865
	11  UIKit                               0x000000010fd18dc6 -[UIApplication sendEvent:] + 263
	12  UIKit                               0x000000010fcf2553 _UIApplicationHandleEventQueue + 6660
	13  CoreFoundation                      0x000000010f866301 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
	14  CoreFoundation                      0x000000010f85c22c __CFRunLoopDoSources0 + 556
	15  CoreFoundation                      0x000000010f85b6e3 __CFRunLoopRun + 867
	16  CoreFoundation                      0x000000010f85b0f8 CFRunLoopRunSpecific + 488
	17  GraphicsServices                    0x00000001131f2ad2 GSEventRunModal + 161
	18  UIKit                               0x000000010fcf7f09 UIApplicationMain + 171
	19  kacperdemo                          0x000000010eebfd3f main + 111
	20  libdyld.dylib                       0x000000011212892d start + 1
	21  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException