strategy runtime error

strategy.swift

protocol Presentable {
    func presenting(with viewController: UIViewController)
}

extension Presentable where Self: UIViewController {
    
    func presenting(with viewController: UIViewController) {
        
        switch self {
        case let pushableViewContorller as Pushable:
            pushableViewContorller.present(on: viewController)
            
        case let setableViewContorller as Setable:
            setableViewContorller.present(on: viewController)
            
        default:
            print("exception error: can't viewContorller presented, plz check: Presentable in Lobby MenuViewController.swift")
        }
    }
}


protocol PresentStrategy where Self: UIViewController {
    func present(on viewController: UIViewController, animated: Bool)
}

protocol Pushable: Presentable, PresentStrategy { }

extension Pushable {
    func present(on viewController: UIViewController, animated: Bool = true) {
        viewController.navigationController?.pushViewController(self, animated: animated)
    }
}

protocol Setable: Presentable, PresentStrategy { }

extension Setable {
    func present(on viewController: UIViewController, animated: Bool = false) {
       viewController.navigationController?.setViewControllers([self], animated: animated)
    }
}

//MARK: Extensions to conform Pushable
extension BankingMenu: Pushable {}
extension StatementMenu: Pushable {}
extension MyAccountMenu: Pushable {}
extension SupportMenu: Pushable {}
extension TermsConditionsMenu: Pushable {}
extension LanguageSetting: Pushable {}
extension MessageMenu: Pushable {}


//MARK: Extensions to conform Stable
extension WKWebViewController: Setable {}
extension SettingMenu: Setable {}












//modified: corrected! 

//MARK: - PresentStrategy
protocol Presentable {
    func present(with presentStrategy: PresentStrategy)
}

extension LobbyMenuViewController: Presentable {
    func present(with presentStrategy: PresentStrategy) {
        
        guard let viewController = presentStrategy as? UIViewController else { return }
        
        switch presentStrategy {
        case is Pushable:
             self.navigationController?.pushViewController(viewController, animated: true)
            
        case is Setable:
            self.navigationController?.setViewControllers([viewController], animated: false)
        
        default:
            print("exception error: can't viewContorller presented, plz check: Presentable in Lobby MenuViewController.swift")
        }
    }
}

//MARK: - Protocol PresentStrategy
protocol PresentStrategy { }
protocol Pushable   : PresentStrategy { }
protocol Setable    : PresentStrategy { }

//MARK: - Extensions to conform Pushable
extension BankingMenu           : Pushable {}
extension StatementMenu         : Pushable {}
extension MyAccountMenu         : Pushable {}
extension SupportMenu           : Pushable {}
extension TermsConditionsMenu   : Pushable {}
extension LanguageSetting       : Pushable {}
extension MessageMenu           : Pushable {}


//MARK: - Extensions to conform Stable
extension WKWebViewController   : Setable {}
extension SettingMenu           : Setable {}