applyfilter: 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/sbin/applyfilter - from package: leafnode

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

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