Boot problem when starting a VM

Hello,

I installed Proxmox on a raspberry pi.

I create a VM as noted in different tutorials, but every time I want to start the VM, I have the following message :


I tried this tutorial, but it does not solve my problem : https://www.firestorm.ch/fr/kb/vm-hangt-booting-from-harddisk/

Do you have any idea what I have to do to make it work properly ?

Thks