lcdexec: 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/lcdexec - from package: lcdproc

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

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