Modify login module : error

<form class="short style" action="<?php echo $loginPost; ?>" method="post" id="<?php echo $idFromLogin; ?>"> <div class="username"> <input name="username" id="mod_login_username<?php echo $id_sfx; ?>" size="18" placeholder="Identifiant" type="text"> </div> <div class="password"> <input name="passwd" id="mod_login_password<?php echo $id_sfx; ?>" size="18" placeholder="Mot de passe" type="password"> </div> <div class="remember"> <label for="mod_login_remember">Se souvenir de moi</label> <input type="checkbox" name="remember" id="mod_longin_remember<?php echo $id_sfx; ?>" value="yes" checked="checked"> </div> <div class="button"> <input type="submit" value="<?php echo $buttonValue; ?>" name="Submit"> </div> <ul class="blank"> <li> <a href="<?php echo $urlLostPassword; ?>">Un oublie ?</a> </li> <li> <a href="<?php echo $urlRegister; ?>">Cr&eacute;er un compte</a> </li> </ul> <input name="op2" value="login" type="hidden"> <input name="lang" value="<?php echo $_CB_framework->getCfg( 'lang' ); ?>" type="hidden"> <input name="force_session" value="1" type="hidden"> <input name="return" value="<?php echo "B: ".$return; ?>" type="hidden"> <input name="message" value="<?php echo htmlspecialchars($message_login); ?>" type="hidden"> <input name="loginfrom" value="<?php echo htmlspecialchars($loginFrom); ?>" type="hidden">