clickzone: 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:

/var/lib/wims/public_html/bin/clickzone - from package: wims

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