vobStreamer: 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/vobStreamer - from package: livemedia-utils

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

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