pmt-ofl: 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/pmt-ofl - from package: libpam-mount

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

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