xml2wbxml: 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/bin/xml2wbxml - from package: libwbxml2-utils

You may install the required package with command apt-get install {package}
Error in other languages:
xml2wbxml: bevel nie gevind nie
xml2wbxml: comandă negăsită
xml2wbxml: comando não encontrado
xml2wbxml: commande introuvable
xml2wbxml: command not found
xml2wbxml: käsku ei ole
xml2wbxml: không tìm thấy lệnh
xml2wbxml: komanda nerasta
xml2wbxml: Kommando nicht gefunden.
xml2wbxml: kommandot finns inte
xml2wbxml: komut yok
xml2wbxml: nie znaleziono polecenia
xml2wbxml: níor aimsíodh an t-ordú
xml2wbxml: no se encontró la orden
xml2wbxml: no s'ha trobat l'ordre
xml2wbxml: opdracht niet gevonden
xml2wbxml: parancs nem található
xml2wbxml: perintah tidak ditemukan
xml2wbxml: príkaz nenájdený
xml2wbxml: příkaz nenalezen
xml2wbxml: команда не найдена
xml2wbxml: командата не е открита
xml2wbxml: 命令找不到
xml2wbxml: コマンドが見つかりません