Using OneTimeCode with DigitInputView Crashes app

[iTatla1]

When using iOS12 oneTimeCode feature on digit-input-view it crashes app, here's how I'm doing it.

 func setupDigitView(){
        digitView.numberOfDigits = 4
        digitView.bottomBorderColor = AppTheme.placeholderColor ?? UIColor.white
        digitView.nextDigitBottomBorderColor = AppTheme.placeholderColor ?? UIColor.white
        digitView.textColor = UIColor.white
        digitView.acceptableCharacters = "0123456789"
        digitView.keyboardType = .decimalPad
        digitView.animationType = .spring
        digitView.font = UIFont.monospacedDigitSystemFont(ofSize: 10, weight: UIFont.Weight(rawValue: 1))
        digitView.keyboardAppearance = .dark
        
        // One time code
        if #available(iOS 12.0, *) {
            for view in digitView.subviews{
                guard let tf = view as? UITextField else{continue}
                tf.textContentType = .oneTimeCode
            }
        }
    }

And the crash is :

Fatal error: Can't remove last element from an empty collection

[boranyldrm]

Same issue

[iTatla1]

@boranyldrm I've fixed this issue you can check the solution on following https://github.com/iTatla1/DigitInputView.git repo