roard: 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/bin/roard - from package: roaraudio

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