pfsoctavelum: 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/pfsoctavelum - from package: pfstools

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