failed to load database information

hi,

i am developing web base report portal in asp.net (vs2012). my back end database is oracle 64bit under linux. i have deployed web base application in windows 2008 r2 64bit server. in that server i have installed oracle 11g 32 bit client, installed crystal report 2008 and also installed crystal report viewer ver 13 32bits. when i am previewing report in crystal report 2008 with jdbc connection there is no error and preview the report. but when try to run the report through asp.net, i am getting error "failed to load database information". i have tried to resolve by changing different viewer version, but to fail. is there any error in code? code is written as follows

            if (Request.QueryString["cr"] != null)

            {

                reportPath = "c:\\rptreports\\" + Request.QueryString["cr"];

                CrystalReportViewer1.ReportSource = reportPath;

                ConnectionInfo crConnectionInfo = MyClass.ConInfo();

                TableLogOnInfos crtableLogoninfos = new TableLogOnInfos();

                crtableLogoninfos = CrystalReportViewer1.LogOnInfo;

                foreach (TableLogOnInfo crtableLogoninfo in crtableLogoninfos)

                {

                    crtableLogoninfo.ConnectionInfo = crConnectionInfo;

                }

            }

        public static ConnectionInfo ConInfo()

        {

            ConnectionInfo connInfo = new ConnectionInfo();

            connInfo.ServerName = "orcl";

            connInfo.DatabaseName = "ORCL";

            connInfo.UserID = "uml";

            connInfo.Password = "uml";

            return connInfo;

        }

can anybody help me to resolve error?