aefp: 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

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/aefp - from package: aegis

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