The problem is here, but I do not know where. Can you help me?
<!DOCTYPE html>
<html class="no-js" <?php language_attributes(); ?>>
<head>
<meta charset="<?php bloginfo('charset'); ?>">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title><?php wp_title(''); ?></title>
<link rel="pingback" href="<?php bloginfo('pingback_url'); ?>">
<?php wp_head(); ?>
</head>
<body <?php body_class(); ?>>
<div id="wrapper">
<header id="header">
<?php if ( has_nav_menu('topbar') ): ?>
<nav class="nav-container group" id="nav-topbar">
<div class="nav-toggle"><i class="fa fa-bars"></i></div>
<div class="nav-text"><!-- put your mobile menu text here --></div>
<div class="nav-wrap container"><?php wp_nav_menu(array('theme_location'=>'topbar','menu_class'=>'nav container-inner group','container'=>'','menu_id' => '','fallback_cb'=> false)); ?></div>
<div class="container">
<div class="container-inner">
<div class="toggle-search"><i class="fa fa-search"></i></div>
<div class="search-expand">
<div class="search-expand-inner">
<?php get_search_form(); ?>
</div>
</div>
</div><!--/.container-inner-->
</div><!--/.container-->
</nav><!--/#nav-topbar-->
<?php endif; ?>
<div class="container group">
<div class="container-inner">
<?php if ( ot_get_option('header-image') == '' ): ?>
<div class="group pad">
<?php echo alx_site_title(); ?>
<?php if ( ot_get_option('site-description') != 'off' ): ?><p class="site-description"><?php bloginfo( 'description' ); ?></p><?php endif; ?>
</div>
<?php endif; ?>
<?php if ( ot_get_option('header-image') ): ?>
<a href="<?php echo home_url('/'); ?>" rel="home">
<img class="site-image" src="<?php echo ot_get_option('header-image'); ?>" alt="<?php get_bloginfo('name'); ?>">
</a>
<?php endif; ?>
<?php if ( has_nav_menu('header') ): ?>
<nav class="nav-container group" id="nav-header">
<div class="nav-toggle"><i class="fa fa-bars"></i></div>
<div class="nav-text"><!-- put your mobile menu text here --></div>
<div class="nav-wrap container"><?php wp_nav_menu(array('theme_location'=>'header','menu_class'=>'nav container-inner group','container'=>'','menu_id' => '','fallback_cb'=> false)); ?></div>
</nav><!--/#nav-header-->
<?php endif; ?>
</div><!--/.container-inner-->
</div><!--/.container-->
</header><!--/#header-->
<div class="container" id="page">
<div class="container-inner">
<div class="main">
<div class="main-inner group">