setvesablank: 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/sbin/setvesablank - from package: kbd

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