pkfssvm: 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/pkfssvm - from package: pktools

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

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