lxsettings-daemon: 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/lxsettings-daemon - from package: lxsession

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

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