inndstart: 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/sbin/inndstart - from package: inn

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