vbfit: 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/lib/voxbo/bin/vbfit - from package: voxbo

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

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