Problemas com o functions.php

<?php
/**

 * Register our sidebars and widgetized areas.

 *

 */

function simplue_widgets_init() {

	register_sidebar( array(

		'name' => 'Home right sidebar',

		'id' => 'home_right_1',

		'before_widget' => '<div class="boxSide">',

		'after_widget' => '</div>',

		'before_title' => '<h1>',

		'after_title' => '</h1>',

	) );

}

add_action( 'widgets_init', 'simplue_widgets_init' );

add_action( 'after_setup_theme', 'simplue_setup' );

function simplue_setup(){

  if ( ! isset( $content_width ) ) $content_width = 700; // pixels

  $defaults = array(

	'default-color'          => '',

	'default-image'          => get_template_directory_uri() . '/images/bg.jpg',

	);

	add_theme_support( 'custom-background', $defaults );

	$args = array(

		'flex-width'    => false,

		'width'         => 998,

		'flex-height'    => false,

		'height'        => 180,

		'default-image' => get_template_directory_uri() . '/images/bg-header.png',

	);

	add_theme_support( 'custom-header', $args );

	add_theme_support( 'automatic-feed-links' );

	register_nav_menu( 'main-menu', 'main-menu' );

  add_editor_style( 'custom-editor-style.css' );

}

  // WP TITLE

  function simplue_wp_title( $title, $sep ) {

  global $paged, $page;

  if ( is_feed() )

    return $title;

  // Add the site name.

  $title .= get_bloginfo( 'name' );

  // Add the site description for the home/front page.

  $site_description = get_bloginfo( 'description', 'display' );

  if ( $site_description && ( is_home() || is_front_page() ) )

    $title = "$title $sep $site_description";

  // Add a page number if necessary.

  if ( $paged >= 2 || $page >= 2 )

    $title = "$title $sep " . sprintf( 'Page %s', '', max( $paged, $page ) );

  return $title;

}

add_filter( 'wp_title', 'simplue_wp_title', 10, 2 );

// Script style

function simplue_scripts_styles() {

  /*

   * Adds JavaScript to pages with the comment form to support

   * sites with threaded comments (when in use).

   */

  if ( is_singular() && comments_open() && get_option( 'thread_comments' ) )

    wp_enqueue_script( 'comment-reply' );

  // Loads our main stylesheet.

  wp_enqueue_style( 'simplue-style', get_stylesheet_uri() );

}

add_action( 'wp_enqueue_scripts', 'simplue_scripts_styles' );

class simplue_CSS_Menu_Maker_Walker extends Walker {

  var $db_fields = array( 'parent' => 'menu_item_parent', 'id' => 'db_id' );

  function start_lvl( &$output, $depth = 0, $args = array() ) {

    $indent = str_repeat("\t", $depth);

    $output .= "\n$indent
<ul>\n";

  }
  function end_lvl( &$output, $depth = 0, $args = array() ) {

    $indent = str_repeat("\t", $depth);

    $output .= "$indent</ul>
\n";

  }

  function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {

    global $wp_query;

    $indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';

    $class_names = $value = ''; 

    $classes = empty( $item->classes ) ? array() : (array) $item->classes;

    /* Add active class */

    if(in_array('current-menu-item', $classes)) {

      $classes[] = 'active';

      unset($classes['current-menu-item']);

    }

    /* Check for children */

    $children = get_posts(array('post_type' => 'nav_menu_item', 'nopaging' => true, 'numberposts' => 1, 'meta_key' => '_menu_item_menu_item_parent', 'meta_value' => $item->ID));

    if (!empty($children)) {

      $classes[] = 'has-sub';

    }

    $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );

    $class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';

    $id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args );

    $id = $id ? ' id="' . esc_attr( $id ) . '"' : '';

    $output .= $indent . '<li' . $id . $value . $class_names .'>';

    $attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';

    $attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';

    $attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';

    $attributes .= ! empty( $item->url )        ? ' href="'   . esc_attr( $item->url        ) .'"' : '';

    $item_output = $args->before;

    $item_output .= '<a'. $attributes .'>';

    $item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;

    $item_output .= '';

    $item_output .= $args->after;

    $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );

  }

  function end_el( &$output, $item, $depth = 0, $args = array() ) {

    $output .= "\n";

  }

}

// Single navigation

function simplue_post_nav() {

  global $post;

  // Don't print empty markup if there's nowhere to navigate.

  $previous = ( is_attachment() ) ? get_post( $post->post_parent ) : get_adjacent_post( false, '', true );

  $next     = get_adjacent_post( false, '', false );

  if ( ! $next && ! $previous )

    return;

 }

  <div id="navSingle">

      <div class="aPrev"><?php previous_post_link( '%link', '<span class="meta-nav">←</span> %title', 'Previous post link', 'simplue' ); ?></div>

      <div class="aNext"><?php next_post_link( '%link', '%title <span class="meta-nav">→</span>', 'Next post link', 'simplue' ); ?></div>

  </div><!-- navSingle -->

?>

Ola, eu reinstalei o WordPress e fiz o upload do tema e enviei ftp e resolveu. Mas obrigado vlw! 🙂