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

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