Error when opening CR report

Hello,

I've created a form to display a crystal report.
Data are collected in a dataset and sended to the CR

All was working perfect but now I have the following message :

An unhandled exception of type 'System.ExecutionEngineException' occurred in crdb_adoplus.dll

And I don't know Why ??? I created a new CR from scratch in case I have modify dataset models and linking was not updated but still the same

VB Code:

' CR Variables
Dim crReportDocument As ReportDocument
Dim FrmAccuse As New FormCrystalReport()
Dim Rpt As New CRAccuseComplet()
 
Rpt.SetDataSource(DSDossier1)
crReportDocument = rpt
FrmAccuse.CrystalReportViewer1.ReportSource = crReportDocument
 
FrmAccuse.ShowDialog() '<<<<<<<<<<<<<<<<<<<<--------------

Any Idea ?

Thanks