squeezelite-pa: 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/squeezelite-pa - from package: squeezelite-pa

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