Pesquisar na Comunidade

Olá a todos! Quando eu tento fazer o login me mostra esse erro "Could not log you in."; Alguém sabe me ajudar a resolver esse problema no meu código? <?php require_once("core/init.php"); if (Input::exists()) { if (Token::check(Input::get("token"))) { $validate = new Validate(); $validation = $validate->check($_POST, array( "username" => array("required" => true), "password" => array("required" => true) )); if ($validation->passed()) { $user = new User(); $remember = (Input::get("remember")) === "on" ? true : false; $login = $user->login(Input::get("username"), Input::get("password"), $remember); if ($login) { Session::flash("home", "Welcome back!"); Redirect::to("index.php"); } else { echo "Could not log you in."; } } else { foreach ($validation->errors() as $error) { echo $error."<BR>"; } } } } ?> <form action="" method="POST"> <div class="field"> <label for="username">Username</label> <input type="text" name="username" id="username"> </div> <div class="field"> <label for="password">Password</label> <input type="password" name="password" id="password"> </div> <div class="field"> <label for="remember"> <input type="checkbox" name="remember" id="remember"> Remember me </label> </div> <input type="hidden" name="token" value="<?php echo Token::generate(); ?>"> <input type="submit" value="Log in"> </form> Desde já obrigado.