flam3-convert: 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/flam3-convert - from package: flam3

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

Error in other languages:
flam3-convert: bevel nie gevind nie
flam3-convert: comandă negăsită
flam3-convert: comando não encontrado
flam3-convert: commande introuvable
flam3-convert: command not found
flam3-convert: käsku ei ole
flam3-convert: không tìm thấy lệnh
flam3-convert: komanda nerasta
flam3-convert: Kommando nicht gefunden.
flam3-convert: kommandot finns inte
flam3-convert: komut yok
flam3-convert: nie znaleziono polecenia
flam3-convert: níor aimsíodh an t-ordú
flam3-convert: no se encontró la orden
flam3-convert: no s'ha trobat l'ordre
flam3-convert: opdracht niet gevonden
flam3-convert: parancs nem található
flam3-convert: perintah tidak ditemukan
flam3-convert: príkaz nenájdený
flam3-convert: příkaz nenalezen
flam3-convert: команда не найдена
flam3-convert: командата не е открита
flam3-convert: 命令找不到
flam3-convert: コマンドが見つかりません