change the following code:
$WAFV_Errors .= WAValidateLE((strtolower(isset($_POST["Security_Code"])?$_POST["Security_Code"]:"")) . "",((isset($_SESSION["captcha_Security_Code"]))?strtolower($_SESSION["captcha_Security_Code"]):"") . "",true,4);
to:
$WAFV_Errors .= WAValidateLE((strtolower(isset($_POST["Security_Code"])?$_POST["Security_Code"]:"")) . "",((isset($_SESSION["captcha_Security_Code_1"]))?strtolower($_SESSION["captcha_Security_Code_1"]):"") . "",true,4);