vbmaskcompare: 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/vbmaskcompare - from package: voxbo

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