         super.updateView()
         
         navigationItem.rightBarButtonItem?.customView?.hidden = !currentStepViewController!.finalizesFlow
-        stepNumberLabel.text = "\(currentStepViewController!.stepNumber)."
-        stepIndicationLabel.text = currentStepViewController!.stepIndication
+        stepNumberLabel?.text = "\(currentStepViewController!.stepNumber)."
+        stepIndicationLabel?.text = currentStepViewController!.stepIndication
     }
     
     override func configureView() {

    @IBOutlet private weak var bottomInsetConstraint: NSLayoutConstraint!
    
    private let stepClasses: [PairingAddBaseStepViewController.Type] = [
        PairingAddScanStepViewController.self,
        PairingAddCodeStepViewController.self,
        PairingAddNameStepViewController.self
    ]
    private var currentStepNumber = -1

        addChildViewController(newViewController)
        newViewController.didMoveToParentViewController(self)
        newViewController.view.frame = containerView.bounds
        containerView?.addSubview(newViewController.view)

        // slide to new view controller
        if let currentViewController = currentStepViewController {
