Mypool is not mounted after a reboot and the vdev is offline

After I run resent upgrade system reboot and I lost my pool, it does not load. VDEVs - Offline, Pool Status: Offline,
I can see it when I run “Cli → storage pool query” shell.

New User, Not much knowledge about truenas can some one help me please?

thank you.

First post your hardware please - in detail