Almighty: 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/Almighty - from package: oar-server

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