dxml-getelement: 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/dxml-getelement - from package: dancer-xml

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