LXD error on restart

I’m following this guide for my projec: ORB SLAM3 with OAK-D & ROS1 noetic on LXD #ROS - Qiita

In the first part it show hot to setup LXD, but when I reach the restart command it doesn’t work, nor works an lxc start
Any clue on what can it be?

ubuntu 20.04 aarch64 on a raspberry pi4

Sorry for the picture, I only have the terminal on the Raspberry.

What do you get when you type

lxc list

It gives one entry:

NAME: noetic
STATE: STOPPED
IPV4:
IPV6:
TYPE: CONTAINER
SNAPSHOTS: 0

up