Login funktioniert nicht

<?php
session_start();
$verhalten = 0;
       $conn = mysqli_connect($servername, $username,$password,$database);


    if($conn)
    {
        if(!isset($_SESSION['username']) AND !isset($_GET['page'])) {
            if($_GET['page'] == "log") {
                $CurrentUser = mysqli_real_escape_string($conn, $_POST['user']);
                $UserPasswort = mysqli_real_escape_string($conn, $_POST['password']);
                $sqlQuery = "SELECT passwort FROM `Users` WHERE username='$CurrentUser'";
                $result = mysqli_query($conn, $sqlQuery);
                if($result)
                {    
                    if(password_verify($UserPasswort, $result['passwort']))
                    {
                        echo $result['passwort'];
                        $_SESSION['username'] = $CurrentUser;
                        $verhalten = 1;
                    } else {
                        echo "Fehler";
                        $verhalten = 2;
                    }
                }
                else
                {
                    echo "Error in SQL statement";
                    $vergessen = 2;
                }
            }
        }
        else
        {
            echo "hier";
        }
    }
    else
    {
        echo "Conn error";
    }
?>