rpld-showplaying: 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/rpld-showplaying - from package: roarplaylistd-tools

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

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