apsfilterconfig: 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/apsfilterconfig - from package: apsfilter

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

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