stag-autoddl: 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

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/stag-autoddl - from package: libdbix-dbstag-perl

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