metaflac2time: 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/metaflac2time - from package: vclt-tools

You may install the required package with command apt-get install {package}
Error in other languages:
metaflac2time: bevel nie gevind nie
metaflac2time: comandă negăsită
metaflac2time: comando não encontrado
metaflac2time: commande introuvable
metaflac2time: command not found
metaflac2time: käsku ei ole
metaflac2time: không tìm thấy lệnh
metaflac2time: komanda nerasta
metaflac2time: Kommando nicht gefunden.
metaflac2time: kommandot finns inte
metaflac2time: komut yok
metaflac2time: nie znaleziono polecenia
metaflac2time: níor aimsíodh an t-ordú
metaflac2time: no se encontró la orden
metaflac2time: no s'ha trobat l'ordre
metaflac2time: opdracht niet gevonden
metaflac2time: parancs nem található
metaflac2time: perintah tidak ditemukan
metaflac2time: príkaz nenájdený
metaflac2time: příkaz nenalezen
metaflac2time: команда не найдена
metaflac2time: командата не е открита
metaflac2time: 命令找不到
metaflac2time: コマンドが見つかりません