enber: 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/enber - from package: asn1c

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

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