                           titleColor: UIColor?,
                           messageColor: UIColor?,
                           font: UIFont?) {
-        let toastView = self.toastView(message: message,
-                                       title: title,
-                                       image: nil,
-                                       backgroundColor: backgroundColor,
-                                       titleColor: titleColor,
-                                       messageColor: messageColor,
-                                       font: font)
+        guard let toastView = self.toastView(message: message,
+                                             title: title,
+                                             image: nil,
+                                             backgroundColor: backgroundColor,
+                                             titleColor: titleColor,
+                                             messageColor: messageColor,
+                                             font: font) else {
+                                        return
+        }
         self.showToast(toastView: toastView,
                        duration: Constants.ToastDuration,
                        position: .bottom)

                          titleColor: UIColor?,
                          messageColor: UIColor?,
                          font: UIFont?) {
        let toastView = self.toastView(message: message,
                                       title: title,
                                       image: image,
                                       backgroundColor: backgroundColor,
                                       titleColor: titleColor,
                                       messageColor: messageColor,
                                       font: font)
        self.showToast(toastView: toastView,
                       fadeIn: fadeIn,
                       duration: duration,

      - parameter toastView: Toast view
      - parameter CGPoint: The position point that toast will displayed
     */
    public func showToast(toastView: UIView,
                          point: CGPoint) {
        createAndShowToast(toastView: toastView,
                           fadeIn: Constants.ToastFadeDuration,
