Fifth error

OpenGL
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OpenGL: NVIDIA Corporation 2.1.2 GeForce G102M/PCI/SSE2

Software
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OS: Microsoft Windows NT 6.1.7601 Service Pack 1 x64
.NET Version: 4.0.30319.34209
MCSkin3D Version: 1.5.0.300

Exception
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System.ArgumentNullException
Value cannot be null.
Parameter name: image
 System.Drawing.Graphics :: Void DrawImage(System.Drawing.Image, Int32, Int32, Int32, Int32)
 MCSkin3D.SkinTreeView :: Void OnDrawNode(System.Windows.Forms.DrawTreeNodeEventArgs)
  - C:\Users\Paril\Documents\GitHub\mcskin3d\Controls\SkinTreeView.cs 446:4
 MCSkin3D.SkinTreeView :: Void RecursiveDrawCheck(System.Windows.Forms.PaintEventArgs, System.Windows.Forms.TreeNode, Int32 ByRef)
  - C:\Users\Paril\Documents\GitHub\mcskin3d\Controls\SkinTreeView.cs 528:4
 MCSkin3D.SkinTreeView :: Void RecursiveDrawCheck(System.Windows.Forms.PaintEventArgs, System.Windows.Forms.TreeNode, Int32 ByRef)
  - C:\Users\Paril\Documents\GitHub\mcskin3d\Controls\SkinTreeView.cs 534:6
 MCSkin3D.SkinTreeView :: Void OnPaint(System.Windows.Forms.PaintEventArgs)
  - C:\Users\Paril\Documents\GitHub\mcskin3d\Controls\SkinTreeView.cs 551:5
 System.Windows.Forms.Control :: Void PaintWithErrorHandling(System.Windows.Forms.PaintEventArgs, Int16)
 System.Windows.Forms.Control :: Void WmPaint(System.Windows.Forms.Message ByRef)
 System.Windows.Forms.Control :: Void WndProc(System.Windows.Forms.Message ByRef)
 System.Windows.Forms.TreeView :: Void WndProc(System.Windows.Forms.Message ByRef)
 System.Windows.Forms.Control+ControlNativeWindow :: Void OnMessage(System.Windows.Forms.Message ByRef)
 System.Windows.Forms.Control+ControlNativeWindow :: Void WndProc(System.Windows.Forms.Message ByRef)
 System.Windows.Forms.NativeWindow :: IntPtr Callback(IntPtr, Int32, IntPtr, IntPtr)