libc++abi.dylib: terminating with uncaught exception of type NSException (lldb)

I think is AVAudioSession issue. But I can find out where is. Can somebody help me?

        do {
            try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
            try AVAudioSession.sharedInstance().setActive(true, with: .notifyOthersOnDeactivation)
        } catch { }
       
        let theSession = AVAudioSession.sharedInstance()
        NotificationCenter.default.addObserver(self,
                                               selector:Selector(("playInterrupt:")),
                                               name:NSNotification.Name.AVAudioSessionInterruption,
                                               object: theSession)