lspgpot: 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/lspgpot - from package: gnupg

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

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