gnupod_check: 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/gnupod_check - from package: gnupod-tools

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

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