roarpluginrunner: 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/roarpluginrunner - from package: roarclients

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

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