vbmerge4d: 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/vbmerge4d - from package: voxbo

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

Error in other languages:
vbmerge4d: bevel nie gevind nie
vbmerge4d: comandă negăsită
vbmerge4d: comando não encontrado
vbmerge4d: commande introuvable
vbmerge4d: command not found
vbmerge4d: käsku ei ole
vbmerge4d: không tìm thấy lệnh
vbmerge4d: komanda nerasta
vbmerge4d: Kommando nicht gefunden.
vbmerge4d: kommandot finns inte
vbmerge4d: komut yok
vbmerge4d: nie znaleziono polecenia
vbmerge4d: níor aimsíodh an t-ordú
vbmerge4d: no se encontró la orden
vbmerge4d: no s'ha trobat l'ordre
vbmerge4d: opdracht niet gevonden
vbmerge4d: parancs nem található
vbmerge4d: perintah tidak ditemukan
vbmerge4d: príkaz nenájdený
vbmerge4d: příkaz nenalezen
vbmerge4d: команда не найдена
vbmerge4d: командата не е открита
vbmerge4d: 命令找不到
vbmerge4d: コマンドが見つかりません