Balloon Notification Error when using the TaskbarIcon Library for a WPF Project

I'm trying to implement the a Balloon Notification to appear when a button is clicked however I keep receiving a specific error:

An object reference is required for the non-static field, method, or property 
'TaskbarIcon.ShowBalloonTip(string, string, BalloonIcon)

I'm using the library Hardcodet.Wpf.TaskbarNotification;

The Method is

class NotifyIcon
{
    public static void ShowStandardBalloon()
    {
        string title = "WPF NotifyIcon";
        string text = "This is a standard balloon";
        TaskbarIcon.ShowBalloonTip(title, text, BalloonIcon.Error);
    }
}

and is called:

 private void Button_Click(object sender, RoutedEventArgs e)
    {
        NotifyIcon ST = new NotifyIcon();
        ST.ShowStandardBalloon();
    }

Error is appearing under TaskbarIcon.ShowBalloonTip.

I've tried changing to public static void in the Notify Icon class however that didn't resolve anything.

You need to call the ShowBalloonTip on and instance of TaskbarIcon

TaskbarIcon TBIcon = new TaskbarIcon()
string title = "WPF NotifyIcon";
string text = "This is a standard balloon";
TBIcon.ShowBalloonTip(title, text, BalloonIcon.Error);