affcat: 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/affcat - from package: afflib-tools

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