You don't have any email recipients specified.
line 44 you have:
//$RecipArray[$CurIndex ][] = "";
and it should probably be:
$RecipArray[$CurIndex ][] = "" . $_POST["Email_Address"] ."";
To silently fail and make it appear to work, update line 20 from:
PostResult($WAFV_Redirect,$WAFV_Errors,"PluginContact");
to:
header("location: /thank-you.php");
die();