[RESOLVED] Error in calling a class

[TrueProducts]

Hi, i have a class, with 2 functions in it. I am calling them like normal, but it seems to error.

My class:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
 
namespace WebBrowser
{
    class Mypicssave
    {
        public static void Mypictures(Bitmap thumbnail)
        {
            String SaveName = DateTime.Now.ToShortDateString().Replace("/", "-") + ".png";
            thumbnail.Save(Environment.SpecialFolder.MyPictures + @"\" + SaveName, System.Drawing.Imaging.ImageFormat.Png);
        }
        public static void Specicifed(Bitmap thumbnail)
        {
            String SaveName = DateTime.Now.ToShortDateString().Replace("/", "-") + ".png";
            thumbnail.Save(Properties.Settings.Default.specifiedfolder + @"\" + SaveName, System.Drawing.Imaging.ImageFormat.Png);
        }
 
    }
 
}

And my error:

http://true.zxq.net/error.PNG

Any chance someone could help me?

The full source with the error in calling the class in here:
http://pastebin.com/f5826d534


Thanks in advance