lamclean: 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/bin/lamclean - from package: lam-runtime

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

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