pob-2250: command not found

Have You tried accessing the binary with the full path?

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/pob-2250 - from package: poc-streamer

You may install the required package with command apt-get install {package}
Error in other languages:
pob-2250: bevel nie gevind nie
pob-2250: comandă negăsită
pob-2250: comando não encontrado
pob-2250: commande introuvable
pob-2250: command not found
pob-2250: käsku ei ole
pob-2250: không tìm thấy lệnh
pob-2250: komanda nerasta
pob-2250: Kommando nicht gefunden.
pob-2250: kommandot finns inte
pob-2250: komut yok
pob-2250: nie znaleziono polecenia
pob-2250: níor aimsíodh an t-ordú
pob-2250: no se encontró la orden
pob-2250: no s'ha trobat l'ordre
pob-2250: opdracht niet gevonden
pob-2250: parancs nem található
pob-2250: perintah tidak ditemukan
pob-2250: príkaz nenájdený
pob-2250: příkaz nenalezen
pob-2250: команда не найдена
pob-2250: командата не е открита
pob-2250: 命令找不到
pob-2250: コマンドが見つかりません