wddel: 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/wddel - from package: freewnn-jserver

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

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