acoustid-fingerprinter: 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/acoustid-fingerprinter - from package: acoustid-fingerprinter

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

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