Erro no sistema de Login PHP

<?php include 'Vendor/View/Shared/Head.php' ?>



<?php use Vendor\Model\Session;?>

<?php $session = Session::getInstance();?>

<?php $permissoes = unserialize($_SESSION['permissoes']); ?>



<?php if (!empty($session->getSession())):?>

        <?php if ($permissoes["niver"] || $permissoes["cardapio"] || $permissoes["normas"] || $permissoes["posts"] || $permissoes["ramal"] || $permissoes["usuarios"]) :?>

        <li class="dropdown">

          <a class="dropdown-toggle" data-toggle="dropdown" href="#">Painel Administrativo

            <span class="caret"></span></a>

                <ul class="dropdown-menu">

                    <?php if ($permissoes["niver"]) :?> <li><a href="index.php?c=Aniversariantes&m=admin">Aniversariantes</a></li><? endif ?>

                    <?php if ($permissoes["cardapio"]) :?><li><a href="index.php?c=Cardapio&m=admin">Cardapio</a></li><? endif ?>

                    <?php if ($permissoes["normas"]) :?><li><a href="index.php?c=Normas&m=admin">Normas</a></li><? endif ?>

                    <?php if ($permissoes["posts"]) :?><li><a href="index.php?c=Post&m=admin">Post</a></li><? endif ?>

                    <?php if ($permissoes["ramal"]) :?><li><a href="index.php?c=Ramal&m=admin">Ramal</a></li><? endif ?>

                    <?php if ($permissoes["usuarios"]) :?><li><a href="index.php?c=Setores&m=admin">Setores</a></li><? endif ?>

                    <?php if ($permissoes["usuarios"]) :?><li><a href="index.php?c=Usuario&m=admin">Usuarios</a></li><? endif ?>

                </ul>

        </li>

        <?php endif ?>

           

               

<? endif ?>

                <?php if (empty($session->getSession())) {?>

                </ul>

                <ul class="nav navbar-nav" id="menu-right">

                    <li><a href="index.php?c=Login&m=index">Login</a></li>

                </ul>

                <?php } else { ?>

                </ul>

                <ul class="nav navbar-nav" id="menu-right">

                    <li class="dropdown" >

                        <a class="dropdown-toggle" data-toggle="dropdown" href="#">

                                Olá <b><?php echo $_COOKIE['Intranet_User']; ?></b><span class="caret"></span></a>

                                <ul class="dropdown-menu">

                                    <li><a href="index.php?c=Usuario&m=alterasenhauser">Alterar Senha</a></li>

                                    <li><a href="index.php?c=Login&m=logout">Logout</a></li>

                                </ul>

                     </li>

                </ul>

               

                <? } ?>