vcl.mpb: 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"

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