oar_phoenix: 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/sbin/oar_phoenix - from package: oar-server

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

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