gbsplay: 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/gbsplay - from package: gbsplay

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