ssr-aap.qt: 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/ssr-aap.qt - from package: soundscaperenderer

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