sisu-odf: 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/sisu-odf - from package: sisu

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

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