mpb-data: 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/mpb-data - from package: mpb

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