After blank install, Ghost 4.0.1 doesn't start

I have a problem to installa fresh version of Ghost 4.0.1 on my system for my website :

:heavy_multiplication_x: Starting Ghost
One or more errors occurred.

  1. ProcessError

Message: Command failed: /bin/sh -c sudo -S -p ‘#node-sudo-passwd#’ systemctl start ghost_www-abellebee-com
Failed to start ghost_www-abellebee-com.service: Unit ghost_www-abellebee-com.service not found.

Exit code: 5

Debug Information:
OS: Ubuntu, v20.10
Node Version: v12.21.0
Ghost Version: 4.0.1
Ghost-CLI Version: 1.16.2
Environment: production
Command: ‘ghost install’

With “Ghost run”, the site works