Installing home assistant using proxmox 2021

Hello
I m trying to run the bash script in a debian vm i have on proxmox but i have this error :

login as: tony
[email protected]'s password:
Linux homeassistant 4.19.0-16-amd64 #1 SMP Debian 4.19.181-1 (2021-03-19) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Mon May 24 21:01:37 2021 from 192.168.10.120
tony@homeassistant:~$ sudo bash -c "$(wget -qLO - https://raw.githubusercontent.                                                                    com/Kanga-Who/home-assistant/master/hassos_install.sh)"
[sudo] Mot de passe de tony : 
bash: ligne 61: pvesm : commande introuvable
numfmt: nombre incorrect : « failure »
[ERROR] 2@54 Unknown failure occured.

Do you know why ?
Thank you
Tony