System.NullReferenceException: Object reference not set to an instance of an object. at ProdCenter.ProdCenter.CreateLicense(XmlDocument oGenConfig, String& filename, Byte[]& filestream, Int32 replaces_license_id) in \\uk-dpclic-001\c$\inetpub\wwwroot\prodcenter_2\ProdCenter.vb:line 150 at ProdCenter.download_trial.Page_Load(Object sender, EventArgs e) in \\uk-dpclic-001\c$\inetpub\wwwroot\prodcenter_2\maint\download_trial.aspx.vb:line 140