eerrorn: 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:

/lib/rc/bin/eerrorn - from package: openrc

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

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