vfte: 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/bin/vfte - from package: fte-console

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