mp3roaster: 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/mp3roaster - from package: mp3roaster

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

Error in other languages:
mp3roaster: bevel nie gevind nie
mp3roaster: comandă negăsită
mp3roaster: comando não encontrado
mp3roaster: commande introuvable
mp3roaster: command not found
mp3roaster: käsku ei ole
mp3roaster: không tìm thấy lệnh
mp3roaster: komanda nerasta
mp3roaster: Kommando nicht gefunden.
mp3roaster: kommandot finns inte
mp3roaster: komut yok
mp3roaster: nie znaleziono polecenia
mp3roaster: níor aimsíodh an t-ordú
mp3roaster: no se encontró la orden
mp3roaster: no s'ha trobat l'ordre
mp3roaster: opdracht niet gevonden
mp3roaster: parancs nem található
mp3roaster: perintah tidak ditemukan
mp3roaster: príkaz nenájdený
mp3roaster: příkaz nenalezen
mp3roaster: команда не найдена
mp3roaster: командата не е открита
mp3roaster: 命令找不到
mp3roaster: コマンドが見つかりません