Mysteriöse Fehlfunktion

<?php 
    require_once 'config/config.php';
    session_start();


    if(isset($_POST["anmelden"]))
    {
        $username       = filter_var($_POST['username'], FILTER_SANITIZE_SPECIAL_CHARS); 
        $password       = filter_var($_POST['password'], FILTER_SANITIZE_SPECIAL_CHARS);
        if($username && $password)
        { 
            $query      =   $connect->prepare("SELECT `id`, `Name`, `Passwort`, FROM `server_account_main` WHERE `Name` = :Name");
            $query->execute(array('Name' => $username));
            $rowCount   =   $query->rowCount();
            $fetch      =   $query->fetch();
            if($rowCount >0)
            { 
            if($fetch["passwort"] == md5($password))
			{                    
                $_SESSION['username'] = $username;
                $_SESSION['id'] = $fetch["id"];
                $_SESSION['login']   = true;
                echo header('location: home.php');        
			}    
            else $error_msg = "<div class='alert alert-danger' role='alert'><b>Fehler!</b> Passwort ist falsch.</div>";
        }    
        else $error_msg = "<div class='alert alert-danger' role='alert'><b>Fehler!</b> Dieser Benutzeraccount existiert nicht.</div>";
    } 
    else $error_msg = "<div class='alert alert-danger' role='alert'><b>Fehler!</b> Du hast nichts eingegeben.</div>";
}

?>