Can’t insert into my database

Hello friends,

I did a form with html and js, and through a plugin i coded in php, i’d like to insert the result of this form into my wordpress database. But i run into multiples problems. One was that wordpress would told me he couldnt find one column that actually existed, and now that i removed that column from my data just to see, wordpress tell me the insertion was sucessfull. However, my table is empty. Nothing is added into it.

This is my php code that is supposed to insert it

// Créer un tableau vide pour stocker les réponses nettoyées
    $reponse = array();
    
    // Parcourir le tableau $_POST et nettoyer chaque valeur
    foreach ($_POST as $key => $value) {
        if (!empty($value)) {
            $reponse[$key] = sanitize_text_field($value);
        }
    }

    // Insérer les données en utilisant $wpdb->insert
    $result = $wpdb->insert($table_name, $reponse);


// Vérifier le résultat
if ($result === false) {
  echo "Erreur lors de l'insertion des données : " . $wpdb->last_error;
} else {
    echo "L'insertion des données a réussi";
}
print_r($wpdb->queries);


$result = $wpdb->insert($table_name, $data);

}

When i print_r my queries, i can see multiple submissions i did to the form. I even don’t know how it is possible. I see 25 differents submissions that was done on differents days. How can it keep so much of the informations if there are not even kept anywhere in the database ? For example :

 [16] => stdClass Object
        (
            [id] => 17
            [Nom] => Test
            [Prenom] => Test
            [Adresse] => Test
            [Code-Postale] => Test
            [Naissance] => 2000-01-01
            [Telephone] => Test
            [Mail] => [email protected]
            [Probleme-de-sante] => 
            [handicap] => Test
            [RQTH] => 
            [Autre-aide] => 
        )

And when i try to insert something into my database through direct mysql in my phpmyadmin, it works ! So how is it possible ? It’s not a problem of the database since it work. But for some reason there is something preventing my data to be inserted.
Ofc i already checked the code is connected to the right database and right table, i did an echo to check it.
If you could help me, i would trully appreciate it.