An error occurred: NoSuchFlowExecutionException - who can help?

[Mazup!]

Dear knowers,

surprise: I have a problem. 

When I call http://sp.url/Login and reach the partner IDP-site, then I get
the error message "An error occurred: NoSuchFlowExecutionException" on page
http://idp.url/idp/profile/SAML2/Redirect/SSO?execution=e1s1

I am the SP and I think the error is a session problem on partner IDP-site
because I didn't change my setup and read  this article
<https://shibboleth.1660669.n2.nabble.com/NoSuchFlowExecutionException-e1s1-td7642152.html>
.  And yes, the IDP says the error comes from me.

My first interest is, where is the error located. Is possible at all, to get
this error over an IDP request?

Thank you,
Matthias




--
Sent from: https://shibboleth.1660669.n2.nabble.com/Shibboleth-Developers-f1660781.html