Call a function of an another class (protocol)

问题

I have a Slide out navigation panel (menu) and an another "menu" on my first page.

Slide out Menu:

Index
Page 1
Page 2
Page 3
Page 4

On Index:

Page 1
Page 2
Page 3
Page 4

So the user have access to the pages from the Index or by Sliding (or tap on Icon Menu) to have the menu.

But I have an error: I go to page 1 from the Index, I tap on the Icon Menu to slide out the Menu I tap on index, I go to page 1 again from the Index, and here if I tap again on the Icon Menu, I get error: SIGBRT (something like that)

I did some breakpoints:

On this line: self.delegate?.pushViewControllerInStack!(UIStoryboard.nosOffresViewController(‌)!)

And one in the function pushViewControllerInStack

And when I do maniplations, my app read this line self.delegate?.pushViewControllerInStack!(UIStoryboard.nosOffresViewController(‌)!) but it don't go in the function.

So my view lost the access of the function, but I don't know why and how to fix the issue.

There's a lot of code, you can find a git repository here: https://github.com/Vkt0r/SlideOutSideBarTest

the error:

2015-10-28 09:00:33.038 Solutis[477:5075] -[Solutis.NosOffresViewController menuNosOffresTapped:]: unrecognized selector sent to instance 0x7ff5caf464e0
2015-10-28 09:00:33.045 Solutis[477:5075] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[Solutis.NosOffresViewController menuNosOffresTapped:]: unrecognized selector sent to instance 0x7ff5caf464e0'
*** First throw call stack:
(
    0   CoreFoundation                      0x000000010f3b1f65 __exceptionPreprocess + 165
    1   libobjc.A.dylib                     0x0000000111268deb objc_exception_throw + 48
    2   CoreFoundation                      0x000000010f3ba58d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
    3   CoreFoundation                      0x000000010f307f7a ___forwarding___ + 970
    4   CoreFoundation                      0x000000010f307b28 _CF_forwarding_prep_0 + 120
    5   UIKit                               0x000000010fdf31fa -[UIApplication sendAction:to:from:forEvent:] + 92
    6   UIKit                               0x00000001101d5247 -[UIBarButtonItem(UIInternal) _sendAction:withEvent:] + 152
    7   UIKit                               0x000000010fdf31fa -[UIApplication sendAction:to:from:forEvent:] + 92
    8   UIKit                               0x000000010ff57504 -[UIControl sendAction:to:forEvent:] + 67
    9   UIKit                               0x000000010ff577d0 -[UIControl _sendActionsForEvents:withEvent:] + 311
    10  UIKit                               0x000000010ff5794b -[UIControl _sendActionsForEvents:withEvent:] + 690
    11  UIKit                               0x000000010ff56906 -[UIControl touchesEnded:withEvent:] + 601
    12  UIKit                               0x000000010fe5daa3 -[UIWindow _sendTouchesForEvent:] + 835
    13  UIKit                               0x000000010fe5e691 -[UIWindow sendEvent:] + 865
    14  UIKit                               0x000000010fe10752 -[UIApplication sendEvent:] + 263
    15  UIKit                               0x000000010fdebfcc _UIApplicationHandleEventQueue + 6693
    16  CoreFoundation                      0x000000010f2de0a1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
    17  CoreFoundation                      0x000000010f2d3fcc __CFRunLoopDoSources0 + 556
    18  CoreFoundation                      0x000000010f2d3483 __CFRunLoopRun + 867
    19  CoreFoundation                      0x000000010f2d2e98 CFRunLoopRunSpecific + 488
    20  GraphicsServices                    0x000000011485bad2 GSEventRunModal + 161
    21  UIKit                               0x000000010fdf1676 UIApplicationMain + 171
    22  Solutis                             0x000000010f1b892d main + 109
    23  libdyld.dylib                       0x0000000111d8092d start + 1
    24  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)