Hi Roberto,
Your issue seems to be with the signature of the application. To confirm the same you can set system date to any date before 30th Oct 2017 and install the application. You would need to repackage the application using steps mentioned on Adobe AIR applications installation issue page else you can install latest AIR runtime available on Adobe - Adobe AIR and follow the steps mentioned under Workaround section on Adobe AIR applications installation issue page.
Thanks!
