lnpdllx: 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/lnpdllx - from package: lnpd

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

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