module-starter: 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/module-starter - from package: libmodule-starter-perl

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

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