Fixed Login handler

<?php
if (isset($_POST['login-submit'])) {

    include_once "DBC.php";

    $Uname = $_POST['uname'];
    $Psw = $_POST['psw'];

    if (empty($Uname) || empty($Psw)) {
        header("location: ../LoginPage.php?Error=EmptyFields");
        exit();
    }
    else {
        $sql = "SELECT * FROM r66_admin WHERE username=?;";
        $stmt = mysqli_stmt_init($conn);

        if (!mysqli_stmt_prepare($stmt, $sql)) {
            header("location: ../LoginPage.php?Error=SQLerror");
            exit();
        }
        else {
            mysqli_stmt_bind_param($stmt, "s", $Uname);
            mysqli_stmt_excecute($stmt);
            $result = mysqli_stmt_get_result($stmt);

            if ($row = mysqli_fetch_assoc($result)) {
                $PswCheck = password_verify($Psw, $row['password']);

                if ($PswCheck == false) {
                    header("location: ../LoginPage.php?Error=WrongPasswordOrUsername");
                    exit();
                }
                elseif ($PswCheck == true) {
                    session_start();
                    $_SESSION['ID'] = $row['id'];
                    $_SESSION['UsName'] = $row['username'];

                    header("location: ../LoginPage.php?Login=Success");
                    exit();
                }
                else {
                    header("location: ../LoginPage.php?Error=WrongPasswordOrUsername");
                    exit();
                }
            }
            else {
                header("location: ../LoginPage.php?Error=NoUser");
                exit();
            }

        }
    }

}
else {
    header("location: ../Index.php");
    exit();
}
?>