SAapi Delete Project

Hello,

I cant delete project from ALM 11 with the SAapi 

This is my code :

=============================

Private Sub DeleteProject()

Dim sDomainName As String
Dim sProjectName As String
Dim sReply As String

On Error GoTo err
sDomainName = "****"
sProjectName = "****"

Dim m_SAClient As New SACLIENTLib.SAapi
m_SAClient.Login "*******", "******", "*******"
MsgBox ("Admin Logged ")

sReply = m_SAClient.DeleteProject _
(sDomainName, sProjectName, "*******", "******")
MsgBox sReply
Exit Sub

err:
MsgBox "Program failed:" + err.Description
End Sub

 ======================

the error is in attachments

any  help!