archived: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/archived - from package: sympa

You may install the required package with command apt-get install {package}

Error in other languages:
archived: bevel nie gevind nie
archived: comandă negăsită
archived: comando não encontrado
archived: commande introuvable
archived: command not found
archived: käsku ei ole
archived: không tìm thấy lệnh
archived: komanda nerasta
archived: Kommando nicht gefunden.
archived: kommandot finns inte
archived: komut yok
archived: nie znaleziono polecenia
archived: níor aimsíodh an t-ordú
archived: no se encontró la orden
archived: no s'ha trobat l'ordre
archived: opdracht niet gevonden
archived: parancs nem található
archived: perintah tidak ditemukan
archived: príkaz nenájdený
archived: příkaz nenalezen
archived: команда не найдена
archived: командата не е открита
archived: 命令找不到
archived: コマンドが見つかりません