this code block:
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$WAFV_Redirect = "";
$_SESSION['WAVT_contact_Errors'] = "";
if ($WAFV_Redirect == "") {
$WAFV_Redirect = $_SERVER["PHP_SELF"];
}
$WAFV_Errors = "";
$WAFV_Errors .= WAValidateRQ(((isset($_POST["Contact_Name"]))?$_POST["Contact_Name"]:"") . "",true,1);
$WAFV_Errors .= WAValidateEM(((isset($_POST["Email_address"]))?$_POST["Email_address"]:"") . "",true,2);
$WAFV_Errors .= WAValidateRQ(((isset($_POST["Comments"]))?$_POST["Comments"]:"") . "",true,3);
$WAFV_Errors .= WAValidateLE(((isset($_POST["Security_question"]))?strtolower($_POST["Security_question"]):"") . "",((isset($_SESSION["random_answer"]))?strtolower($_SESSION["random_answer"]):"") . "",true,5);
$WAFV_Errors .= WAValidateRX(((isset($_POST["addblock"]))?$_POST["addblock"]:"") . "","/^$/i",false,6);
$WAFV_Errors .= WAValidateRX(((isset($_POST["seconddblock"]))?$_POST["seconddblock"]:"") . "","/^$/i",false,7);
if ($WAFV_Errors != "") {
PostResult($WAFV_Redirect,$WAFV_Errors,"contact");
}
}
?>
is trying to validate form elements that do not exist in your form.
delete that block of code do that it will not try validating these non existing elements.