How to remove ads

Hello,
In the website www.pixelbox.in
unwanted banner ads are appearing in home page on top, middle and bottom. How to remove them ?
I loaded the site in various browsers but problem is there.
For more than 3 years this type problem never appeared though.
Attached please find the screenshot. You can see the ad appearing below the top menu.

Hello there,

Sorry, I don’t know where it comes from. It shouldn’t appear by default. Please provide us a link to your website, so I can take a look.

Regards,
Kharis
aThemes Support

Hello…site is
www.pixelbox.in

Hello there,

Please check your Sydney theme’s header.php file. Does it look like this?

Regards,
Kharis
aThemes Support

I see this full code in the page…

<?php /** * The header for our theme. * * Displays all of the section and everything up till
* * @package Sydney */ ?> > <?php if ( ! function_exists( 'has_site_icon' ) || ! has_site_icon() ) : ?> <?php if ( get_theme_mod('site_favicon') ) : ?> <?php endif; ?> <?php endif; ?> <?php wp_head(); ?> >
<?php _e( 'Skip to content', 'sydney' ); ?>
<header id="masthead" class="site-header" role="banner">
	<div class="header-wrap">
        <div class="container">
            <div class="row">
			<div class="col-md-4 col-sm-8 col-xs-12">
	        <?php if ( get_theme_mod('site_logo') ) : ?>
				<a href="<?php echo esc_url( home_url( '/' ) ); ?>" title="<?php bloginfo('name'); ?>"><img class="site-logo" src="<?php echo esc_url(get_theme_mod('site_logo')); ?>" alt="<?php bloginfo('name'); ?>" /></a>
	        <?php else : ?>
				<h1 class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></h1>
				<h2 class="site-description"><?php bloginfo( 'description' ); ?></h2>	        
	        <?php endif; ?>
			</div>
			<div class="col-md-8 col-sm-4 col-xs-12">
				<div class="btn-menu"></div>
				<nav id="mainnav" class="mainnav" role="navigation">
					<?php wp_nav_menu( array( 'theme_location' => 'primary', 'fallback_cb' => 'sydney_menu_fallback' ) ); ?>
				</nav><!-- #site-navigation -->
			</div>
			</div>
		</div>
	</div>
</header>

<?php sydney_slider_template(); ?>

<div class="header-image">
	<?php sydney_header_overlay(); ?>
	<img class="header-inner" src="<?php header_image(); ?>" width="<?php echo esc_attr( get_custom_header()->width ); ?>" alt="<?php bloginfo('name'); ?>">
</div>

<div id="content" class="page-wrap">
	<div class="container content-wrapper">
		<div class="row">

Hello, any solution to this problem ? Site link and home page script shared in previous message. Your help would be appreciated.

I think it would be easier to solve this issue by checking your site’s backend directly. I just wrote you a direct message and asked the login credentials. Please let me know if you haven’t yet received it.

Regards,
Kharis
aThemes Support