Failed to get root disk device: No root device could be found

I followed the commands here to restore a backupped lxc instance, but got the stated error. Can anyone help here please?

Between backup and restore, I reinstalled the whole system. It seems like an lxc storage error.

simon@simon-itx:/media$ sudo lxc import Backup_4TB/backups/lxd/OpenHAB-backup-05-02-2021.tar.xz
Importing instance: 100% (52.10MB/s)Error: Failed to get root disk device: No root device could be found

 sudo lxc storage ls
+------+--------+--------+-------------+---------+
| NAME | DRIVER | SOURCE | DESCRIPTION | USED BY |
+------+--------+--------+-------------+---------+

Did you restore LXD config before restoring OpenHAB-backup-05-02-2021.tar.xz?


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