Prevent ~Sign in with google~ to automatically sign in on page

I have a problem from a few days on my site on -Sign in with google-. It automatically signs in when access the page. This wasn’t happened before, and i didn’t change anything on code. I don’t see where could be the problem…
Here is the code from my pages.
Google sign in button:

 <div id="my-signin2" class="googleSignIn" style="align:center"></div>

Script:

<script src="https://apis.google.com/js/platform.js?onload=onLoad" async defer></script>
<script>
function onLoad() {
    gapi.load('auth2', function() {
        gapi.auth2.init();
        gapi.signin2.render('my-signin2', {
            'scope': 'profile email',
            'width': 240,
            'height': 50,
            'longtitle': true,
            'theme': 'dark',
            'onsuccess': loginSuccess,
        });
    });

}


function loginSuccess(userInfo) {
    var data = userInfo.getBasicProfile();

    //ajax call update data in database
    $.ajax({
        type: "POST",
        url: "update_data.php",
        data: {
            'id': data.getId(),
            'name': data.getName(),
            'image': data.getImageUrl(),
            'email': data.getEmail(),
        },
        success: function(result) {
            window.location.href = "page to redirect";
        }
    });
}


</script>

update_data.php:

    session_start();
include_once 'config.php';
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

$user_id =  $_POST['id'];
$name = $_POST['name'];
$image =  $_POST['image'];
$email =  $_POST['email'];



$sql = "SELECT * FROM utilizatori WHERE email_utilizator = :email";
$query = $dbh->prepare($sql);

$query->bindParam(':email',$email,PDO::PARAM_STR);

$query->execute();

$results=$query->fetchAll(PDO::FETCH_ASSOC);
if($query->rowCount() > 0)
{
    foreach($results as $result)
    {
    $_SESSION['USER_NAME']= $name;
    $_SESSION['USER_EMAIL']= $result['email_utilizator'];
    $_SESSION['USER_ID']= $result['id_utilizator'];
    $_SESSION['USER_IMAGE']= $image;
    $_SESSION['USER_TYPE']= $result['tip_utilizator'];
}}
else
    echo 'Nu exista utilizatorul';
    

logout.php

    <?php
session_start();
include('config.php');

session_destroy();

echo "<script type='text/javascript'> document.location ='index.php'; </script>";

?>
<script>
 function signOut() {
    var auth2 = gapi.auth2.getAuthInstance();
    auth2.signOut().then(function () {
      console.log('User signed out.');
    });
  }
  </script>