potool: command not found

Have You tried accessing the binary with the full path?

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/potool - from package: potool

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