bpcpd: 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/bpcpd - from package: ion

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

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