Thanks Sam,
I tell you what I did ( a little different ) . I asked our ABAP developer to create a copy of one of the visible BAPI . I reset the JCO Connection pool . Next is the service response :
<Message>JCOProxy Reset Message Sent Successfully</Message>
I I logged off and on , opened the workbench and I could not even see this copy of a visible BAPI .
Please help, thanks a lot ... best regards,