I'm using this code in order to display what page the user is.

I’m using this code in order to display what page the user is.

<title><?php
    global $page, $paged;
    wp_title( '|', true, 'right' );
    bloginfo( 'name' );
    $site_description = get_bloginfo( 'description', 'display' );
    if ( $site_description && ( is_front_page() ) )
        echo " | $site_description";
    if ( $paged >= 2 || $page >= 2 )
        echo ' | ' . sprintf( __( 'Page %s' ), x( $paged, $page ) );
?></title>

When clicking on the navigation it seem to be working properly and it also displays the correct title. But when I click on the pagination, the website shows only a blank page.

I’m using WP-PageNavi plugin to display the pagination.

When I hovered on the tab an error appeared:

https://i255.photobucket.com/albums/hh140/testament1234/title_zps2c22f473.jpg