Error in the if statement

I have an application where there are two types of users (manager and technician), when a user loguea depends on the type that will be a menu or another, when the user is logged in when he clicks on the header I want him to take to its corresponding menu.

In the if statement that I put below, it does not do the if right, it jumps to the else always, and it is in a user manager or a technical user.

<?php
session_start();
if (isset($_SESSION['numero_empleado'])) {

  header('Location: Login');

}

require 'conexion.php';

    $records = $conexion->prepare('SELECT numero_empleado, email, cargo, password FROM usuarios WHERE email=:email');

    $records->bindParam(':email', $_POST['email']);
    $records->execute();
    $resultados = $records->fetch(PDO::FETCH_ASSOC);

        $_SESSION['numero_empleado'] = $resultados['numero_empleado'];

        if ($resultados['cargo'] === 'manager') {
            header('Location: ../Menus/menu_manager.php');
        } else {
            header('Location: ../Menus/menu_tecnico.php');
        }
?>

Sorry for the way I put the code, but I'm new and I still do not know how to put things.

LOGIN CODE

<?php

session_start();
if (isset($_SESSION['numero_empleado'])) {

  header('Location: Login');

}

require 'conexion.php';

if (!empty($_POST['email']) && !empty($_POST['password'])){

    $records = $conexion->prepare('SELECT numero_empleado, email, cargo, password FROM usuarios WHERE email=:email');
    $records->bindParam(':email', $_POST['email']);
    $records->execute();
    $resultados = $records->fetch(PDO::FETCH_ASSOC);

    $message = '';

    if (count($resultados) > 0 && password_verify($_POST['password'], $resultados['password'])){

        $_SESSION['numero_empleado'] = $resultados['numero_empleado'];

        if ($resultados['cargo'] === 'manager') {
            header('Location: ../Menus/menu_manager.php');
        } else {
            header('Location: ../Menus/menu_tecnico.php');
        }

    }else {
        $message = 'La contraseña es incorrecta';
    }

}
?>

                      Login                   

<?php require 'partials/header.php'; ?> 


    <h1>Login</h1>

    <span> o <a href="registrarse.php">Registrarse</a></span>

    <?php if (!empty($message)): ?>
    <p><?=$message?></p>
    <?php endif; ?>
    <form action="login.php" method="post">
        <input type="text" name="email" placeholder="Pon tu correo">
        <input type="password" name="password" placeholder="Ingresa una contraseña">
        <input type="submit" value="Enviar">

    </form>

</body>