Launch every night

Hello
I configured several backups at night [3h-5h].
At this time, the computer is in standby mode. It is therefore possible that nothing can be launched. I am with the latest version of duplicati under Ubuntu 16.10 (I do not know if under ubuntu i ly has services that work in the background !?)

If it’s not possible or if it’s simpler, I want it to start when the session starts. So I put in "application at startup"
Duplicati
/ Usr / bin / Duplicati
This does not work. I am obliged to start the backup manually each time via the web interface.
Regards