asp-perl: 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/asp-perl - from package: libapache-asp-perl

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