Load report failed in crystal report

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C#

private void crystalReportViewer_Load(object sender, EventArgs e)
      {

Report.CustomerDailyCrystalReport cr = new Report.CustomerDailyCrystalReport();
cr.SetDataSource(getDs());
crystalReportViewer.ReportSource = cr;
}

public DataSet getDs()
     {
         conn = new OleDbConnection(Program.Fire_DB);
         conn.Open();
         string query = "SELECT fd_license_no AS [ترخيص البلدية], name_of_comp AS [اسم المؤسسة], register_no AS [رقم تصريح], mobile_no AS [رقم الجوال], location AS [المكان], license_validity AS [الانتهاء], entry_id AS [هوية العميل] FROM tbl_fire_entry_details where license_validity = '" + dtp_expiry_date.Text + "'";
         da = new OleDbDataAdapter(query, conn);
         ds = new DataSet();
         da.Fill(ds, "tbl_fire_entry_details1");
         return ds;
     }