vflmkjpc: 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/vflmkjpc - from package: vflib3-bin

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

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