pkstatogr: 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/pkstatogr - from package: pktools

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

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