Error "string or binary data would be truncated"

CREATE TABLE [dbo].[tblImg](
	[ImgID] [nvarchar](50) NULL,
	[Img_UserID] [int] NOT NULL,
	[ImgName] [nvarchar](50) NULL,
	[img] [varbinary](max) NULL,
	[img_desc] [nvarchar](50) NULL
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

Private Sub getImg()
    Dim len As Integer = selectedFile.PostedFile.ContentLength
    Dim pic As Byte() = New Byte(len - 1) {}
    selectedFile.PostedFile.InputStream.Read(pic, 0, len)

    Dim fileName As String = selectedFile.PostedFile.FileName

    Using lCnn As New SqlConnection(gsConnString)
        lCnn.Open()
        Using lCmd As New SqlCommand
            Dim lsCmd As String
            lCmd.Connection = lCnn
            lsCmd = "INSERT INTO tblImg"
            lsCmd &= " (ImgID, Img_UserID, ImgName, img, img_desc)"
            lsCmd &= " VALUES(" & SQLQUOTE(gsImgID)
            lsCmd &= ", " & SQLQUOTE(gsUserID)
            lsCmd &= ", @imgName, @img, " & SQLQUOTE(Trim(imgDescTxt.Text)) & ")"
			
			lCmd.Parameters.AddWithValue("@imgName", fileName)
            lCmd.Parameters.AddWithValue("@img", pic)
            lCmd.CommandText = lsCmd
            lCmd.ExecuteNonQuery()
        End Using
        lCnn.Close()
    End Using
End Sub