mppbcc: 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/mppbcc - from package: makepp

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