You Have alogic error here near line
Dim cryRpt As New ReportDocument
cryRpt.SetDataSource(ds.Tables(0))
cryRpt.Load("C:\Users\Frontliner0102\Desktop\newRSVSYSTEM\ReservationSys\ReservationSys\ReservationSys\Reports\orderrpt.rpt")
So first load crystal report and then set datasource as
cryRpt.Load("C:\Users\Frontliner0102\Desktop\newRSVSYSTEM\ReservationSys\ReservationSys\ReservationSys\Reports\orderrpt.rpt")
cryRpt.SetDataSource(ds.Tables(0))
Report further if problem Exists.