MKBKV2Hall: 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/MKBKV2Hall - from package: vftool

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

Error in other languages:
MKBKV2Hall: bevel nie gevind nie
MKBKV2Hall: comandă negăsită
MKBKV2Hall: comando não encontrado
MKBKV2Hall: commande introuvable
MKBKV2Hall: command not found
MKBKV2Hall: käsku ei ole
MKBKV2Hall: không tìm thấy lệnh
MKBKV2Hall: komanda nerasta
MKBKV2Hall: Kommando nicht gefunden.
MKBKV2Hall: kommandot finns inte
MKBKV2Hall: komut yok
MKBKV2Hall: nie znaleziono polecenia
MKBKV2Hall: níor aimsíodh an t-ordú
MKBKV2Hall: no se encontró la orden
MKBKV2Hall: no s'ha trobat l'ordre
MKBKV2Hall: opdracht niet gevonden
MKBKV2Hall: parancs nem található
MKBKV2Hall: perintah tidak ditemukan
MKBKV2Hall: príkaz nenájdený
MKBKV2Hall: příkaz nenalezen
MKBKV2Hall: команда не найдена
MKBKV2Hall: командата не е открита
MKBKV2Hall: 命令找不到
MKBKV2Hall: コマンドが見つかりません