wa_keyring: 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/wa_keyring - from package: webauth-utils

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

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