Fallo grave de ejecución en adAS.

Failed to create session ID: memcached (path: valentino.upc.edu:11211)

Excepción [Error]

#0 /opt/sso/adAS-1.8.6/adas-sso/lib/session/SessionManager.class.php(71): session_start()
#1 /opt/sso/adAS-1.8.6/adas-sso/lib/exception/ExceptionManager.class.php(108): prise\adassso\session\SessionManager::sessionStart()
#2 /opt/sso/adAS-1.8.6/adas-sso/www/index.php(58): prise\adassso\exception\ExceptionManager->manageException()
#3 {main}