wmlsc: 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/wmlsc - from package: kannel

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

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