vde_cryptcab: 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/bin/vde_cryptcab - from package: vde2-cryptcab

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

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