Hi, so let's begin : When I go to PhpMyAdmin, I very often have my sql connection can't be linked (because of try/catch, 5 minutes to wait) When someone send a form and the (few) data are stored in PhpMyAdmin (sql), I often have my site crashed. When I upload a file in FTP, I sometimes have a crash (Error 500). Help please This is very embarrassing ! Example of query : $req = $pdo->prepare("INSERT INTO test (pseudo, skype, serv, age, rang, specialite, exp, motiv, dispo, datepost, statut) VALUES (:pseudo, :skype, :serv, :age, :rang, :specialite, :exp, :motiv, :dispo, :datepost, :statut)"); $req->execute(array( ":pseudo" => $_POST['pseudo'], ":skype" => $_POST['skype'], ":serv" => $_POST['serv'], ":age" => $_POST['age'], ":rang" => $_POST['rang'], ":specialite" => $_POST['specialites'], ":exp" => $_POST['experience'], ":motiv" => $_POST['motiv'], ":dispo" => $dispo, ":datepost" => $datepost, ":statut" => $statut, ));