In proxmox after reboot, autostart, can't access dashboard

The timeout is defined in /usr/lib/systemd/system/mariadb.service with TimeoutSec=300 but why don’t wait the 5 minutes?

I found another thread:

https://community.nethserver.org/t/long-time-to-shutdown

There are many online services like:

https://gist.github.com/

https://docs.google.com/