kkc: 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/kkc - from package: libkkc-utils

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

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