fapg: 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/fapg - from package: fapg

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