lakbak: command not found

Have You tried accessing the binary with the full path?

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/lakbak - from package: lakai

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