isrcsubmit: 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/isrcsubmit - from package: isrcsubmit

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

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