HAHTsite hsrun reports the following:

An error occurred communicating with the HAHTsite Scenario Server, probably because the Scenario Server process running this application has terminated due to an error. Report this problem to the site webmaster.

Diagnostic information:

Error Unable to communicate with the hsserver process using the configured address and port number.
The named pipe or socket could not be opened or was not found.
Foreground Host mvinct8.mairie-nantes.fr
Installation Name haht5
Server Group commgeo
hsrun type ISAPI
URL /scripts/hsrun.hse
StateId Do2dyE2YINyLdNZGbWhSnUQvZ0oJ_-4RH4
Date/time 17 May 2012 00:08:26.359