vbfilter: 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/vbfilter - from package: voxbo

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

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