mppprof: 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/mppprof - from package: argyll

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

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