xwpe: 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/xwpe - from package: xwpe

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

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