Sudden White page of death on class-wp-comment.php

U have created syntax issue on your theme code functions.php file please check this.

But my theme hasn’t been changed in over a year.
It is Ciola.

Full functions.php
Has any of these functions been outdated by the new WordPress release?

<?php
/************* GLOBAL CONTENT WIDTH ***************/
if ( !isset($content_width)) { $content_width = 600; }

if ( !function_exists( ‘cb_adjust_cw’ )) {
function cb_adjust_cw() {
global $content_width, $post;
if ($post != NULL) {
$cb_custom_fields = get_post_custom();
if (isset($cb_custom_fields[‘cb_full_width_post’][0])) {$content_width = 940;}
}

if ( is_page_template( ‘template-full-width.php’ ) )
$content_width = 940;
}
}
add_action( ‘template_redirect’, ‘cb_adjust_cw’ );

/************* LOAD NEEDED FILES ***************/

require_once(‘library/core-functions.php’);
require_once(‘library/translation/translation.php’);

// Load Framework
add_filter( ‘ot_show_pages’, ‘__return_false’ );
add_filter( ‘ot_show_new_layout’, ‘__return_false’ );
add_filter( ‘ot_theme_mode’, ‘__return_true’ );
include_once get_template_directory().’/option-tree/ot-loader.php’;
include_once get_template_directory().’/library/extensions/theme-options.php’;

define( ‘RWMB_URL’, trailingslashit( get_stylesheet_directory_uri() . ‘/library/extensions/meta-box’ ) );
define( ‘RWMB_DIR’, trailingslashit( get_stylesheet_directory() . ‘/library/extensions/meta-box’ ) );
require_once RWMB_DIR . ‘meta-box.php’;
include RWMB_DIR . ‘cb-meta-boxes.php’;

/************* THUMBNAIL SIZE OPTIONS *************/

add_image_size(‘cb-thumb-90-crop’, 90, 90, true); // Used on sidebar widgets
add_image_size(‘cb-thumb-220-crop’, 220, 180, true ); // Used on Category Style A, Top Reviews Template
add_image_size(‘cb-thumb-350-crop’, 350, 200, true ); // Used on Category Style B, Module B, Grid 6, Grid 7, Related Posts
add_image_size(‘cb-thumb-380-crop’, 380, 380, true ); // Used on Grid 4, Grid 5, Grid 6, Grid 7, Gallery
add_image_size(‘cb-thumb-600-crop’, 600, ‘350’, true ); // Used on Featured Image, Grid 4, Grid 5, Grid 6, Grid 7
add_image_size(‘cb-thumb-1020-crop’, 1020, ‘500’, true ); // Used on Full-width Slider and content-width featured images
add_image_size(‘cb-thumb-1400’, 1400, ”, true ); // Used on Full-BG featured images

/************* ACTIVE SIDEBARS ********************/

// Sidebars & Widgetizes Areas
if ( ! function_exists( ‘cb_register_sidebars’ ) ) {
function cb_register_sidebars() {
// Sidebar Widget Area 1
register_sidebar(array(
‘name’ => ‘Sidebar’,
‘id’ => ‘sidebar-1’,
‘before_widget’ => ‘<div id=”%1$s” class=”cb-sidebar-widget %2$s”>’,
‘after_widget’ => ‘</div>’,
‘before_title’ => ‘<h3 class=”cb-sidebar-widget-title”>’,
‘after_title’ => ‘</h3>’
));

// Footer 1
register_sidebar(array(
‘name’ => ‘Footer 1’,
‘id’ => ‘footer-1’,
‘before_widget’ => ‘<div id=”%1$s” class=”%2$s”>’,
‘after_widget’ => ‘</div>’,
‘before_title’ => ‘<h3 class=”cb-footer-widget-title”>’,
‘after_title’ => ‘</h3>’
));
// Footer 2
register_sidebar(array(
‘name’ => ‘Footer 2’,
‘id’ => ‘footer-2’,
‘before_widget’ => ‘<div id=”%1$s” class=”%2$s”>’,
‘after_widget’ => ‘</div>’,
‘before_title’ => ‘<h3 class=”cb-footer-widget-title”>’,
‘after_title’ => ‘</h3>’
));
// Footer 3
register_sidebar(array(
‘name’ => ‘Footer 3’,
‘id’ => ‘footer-3’,
‘before_widget’ => ‘<div id=”%1$s” class=”%2$s”>’,
‘after_widget’ => ‘</div>’,
‘before_title’ => ‘<h3 class=”cb-footer-widget-title”>’,
‘after_title’ => ‘</h3>’
));
// Footer 4
register_sidebar(array(
‘name’ => ‘Footer 4’,
‘id’ => ‘footer-4’,
‘before_widget’ => ‘<div id=”%1$s” class=”%2$s”>’,
‘after_widget’ => ‘</div>’,
‘before_title’ => ‘<h3 class=”cb-footer-widget-title”>’,
‘after_title’ => ‘</h3>’
));
}
}
/*********************
SCRIPTS & ENQUEUEING
*********************/
add_action(‘after_setup_theme’,’cb_script_loaders’, 15);

if ( ! function_exists( ‘cb_script_loaders’ ) ) {
function cb_script_loaders() {
// enqueue base scripts and styles
add_action(‘wp_enqueue_scripts’, ‘cb_scripts_and_styles’, 999);
// enqueue admin scripts and styles
add_action(‘admin_enqueue_scripts’, ‘cb_post_admin_scripts_and_styles’);
// ie conditional wrapper
add_filter( ‘style_loader_tag’, ‘cb_ie_conditional’, 10, 2 );
}
}

if ( ! function_exists( ‘cb_scripts_and_styles’ ) ) {
function cb_scripts_and_styles() {
if ( !is_admin() ) {
// modernizr (without media query polyfill)
wp_register_script( ‘cb-modernizr’, get_template_directory_uri(). ‘/library/js/modernizr.custom.min.js’, array(), ‘2.6.2’, false );
wp_enqueue_script(‘cb-modernizr’); // enqueue it
// register main stylesheet
wp_register_style( ‘cb-main-stylesheet’, get_template_directory_uri() . ‘/library/css/style.css’, array(), ‘2.5’, ‘all’ );
wp_enqueue_style(‘cb-main-stylesheet’); // enqueue it
// register flexslider stylesheet
wp_register_style(‘flexslider’, get_template_directory_uri() . ‘/library/css/flexslider.css’, array(), ‘2.5’, ‘all’);
wp_enqueue_style(‘flexslider’); // enqueue it
// ie-only stylesheet
wp_register_style( ‘cb-ie-only’, get_template_directory_uri(). ‘/library/css/ie.css’, array(), ‘2.5’, ‘all’ );
wp_enqueue_style(‘cb-ie-only’); // enqueue it
// register font awesome stylesheet
wp_register_style(‘fontawesome’, ‘//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css’, array(), ‘4.0.3’, ‘all’);
wp_enqueue_style(‘fontawesome’); // enqueue it
// comment reply script for threaded comments
if ( is_singular() AND comments_open() AND (get_option(‘thread_comments’) == 1)) { global $wp_scripts; $wp_scripts->add_data(‘comment-reply’, ‘group’, 1 ); wp_enqueue_script( ‘comment-reply’ );}
// Load Flexslider (Must be loaded in head)
wp_register_script( ‘cb-flexslider’, get_template_directory_uri() . ‘/library/js/jquery.flexslider-min.js’, array( ‘jquery’ ),”, true);
wp_enqueue_script( ‘cb-flexslider’ ); // enqueue it
// Load Superfish
wp_register_script( ‘cb-superfish’, get_template_directory_uri() . ‘/library/js/superfish.js’, array( ‘jquery’ ),”, true);
wp_enqueue_script( ‘cb-superfish’ ); // enqueue it
// Load Hover Intent
wp_register_script( ‘cb-hoverIntent’, get_template_directory_uri() . ‘/library/js/hoverIntent.js’, array( ‘jquery’ ),”, true);
wp_enqueue_script( ‘cb-hoverIntent’ ); // enqueue it
// Load lightbox
$cb_lightbox_onoff = ot_get_option(‘cb_lightbox_onoff’, “on”);
if ($cb_lightbox_onoff != ‘off’) {
wp_register_script( ‘cb-lightbox’, get_template_directory_uri() . ‘/library/js/jquery.fs.boxer.js’, array( ‘jquery’ ),”, true);
wp_enqueue_script( ‘cb-lightbox’ ); // enqueue it
}
// Load Cookie
wp_register_script( ‘cb-cookie’, get_template_directory_uri() . ‘/library/js/cookie.min.js’, array( ‘jquery’ ),”, true);
wp_enqueue_script( ‘cb-cookie’ ); // enqueue it
// Load Fitvids
wp_register_script( ‘cb-fitvid’, get_template_directory_uri() . ‘/library/js/jquery.fitvids.min.js’, array( ‘jquery’ ),”, true);
wp_enqueue_script( ‘cb-fitvid’ ); // enqueue it
// Load Backstretch
wp_register_script( ‘cb-backstretch’, get_template_directory_uri() . ‘/library/js/jquery.backstretch.js’, array( ‘jquery’ ),”, true);
wp_enqueue_script( ‘cb-backstretch’ ); // enqueue it
// Load Jquery Tools
wp_register_script( ‘cb-jquery-tools’, get_template_directory_uri() . ‘/library/js/jquery.tools.min.js’, array( ‘jquery’ ),”, true);
wp_enqueue_script( ‘cb-jquery-tools’ ); // enqueue it
// Load scripts
wp_register_script( ‘cb-js’, get_template_directory_uri() . ‘/library/js/cb-scripts.js’, array( ‘jquery’ ), ‘2.5.4’, true);
wp_enqueue_script( ‘cb-js’ ); // enqueue it
}
}
}

if ( ! function_exists( ‘cb_post_admin_scripts_and_styles’ ) ) {
function cb_post_admin_scripts_and_styles($hook) {
// loading admin styles only on edit + posts + new posts
if( $hook == ‘post.php’ || $hook == ‘post-new.php’ || $hook == ‘profile.php’ || $hook == ‘user-edit.php’ || $hook == ‘themes.php’) {
wp_register_style( ‘cb-admin-css’, get_template_directory_uri(). ‘/library/css/admin.css’, array(), ” );
wp_enqueue_style(‘cb-admin-css’); // enqueue it
wp_register_style( ‘cb-admin-editor’, get_template_directory_uri(). ‘/library/css/editor-style.css’, array(), ” );
wp_enqueue_style(‘cb-admin-editor’); // enqueue it
wp_register_script( ‘admin-js’, get_template_directory_uri() . ‘/library/js/cb-admin.js’, array(), ”, true);
wp_enqueue_script( ‘admin-js’ ); // enqueue it

}
}
}

// adding the conditional wrapper around ie stylesheet
// source: https://code.garyjones.co.uk/ie-conditional-style-sheets-wordpress/
if ( ! function_exists( ‘cb_ie_conditional’ ) ) {
function cb_ie_conditional( $tag, $handle ) {
if ( ‘cb-ie-only’ == $handle ) {
$tag = ‘<!–[if lt IE 9]>’ . “\n” . $tag . ‘<![endif]–>’ . “\n”;
}
return $tag;
}
}

/*********************
Load bundled extensions
********************/
if ( ! function_exists( ‘cb_bundled_extras’ ) ) {
function cb_bundled_extras() {

require_once get_template_directory() . ‘/library/extensions/cb-125-ads-widget.php’;
require_once get_template_directory() . ‘/library/extensions/cb-recent-posts-widget.php’;
require_once get_template_directory() . ‘/library/extensions/cb-random-post-widget.php’;
require_once get_template_directory() . ‘/library/extensions/cb-social-media-widget.php’;
require_once get_template_directory() . ‘/library/extensions/cb-tabs-widget.php’;
require_once get_template_directory() . ‘/library/extensions/cb-top-reviews-widget.php’;
require_once get_template_directory() . ‘/library/extensions/cb-facebook-like-widget.php’;
require_once get_template_directory() . ‘/library/extensions/shortcodes/cb-shortcodes.php’;
require_once get_template_directory() . ‘/library/extensions/Tax-meta-class/cb-class-config.php’;

$jetpack_mods = get_option( ‘jetpack_active_modules’ );

if ($jetpack_mods == NULL) {$jetpack_mods = array();}

if (!in_array( ‘shortcodes’, $jetpack_mods )) { require_once get_template_directory() . ‘/library/extensions/soundcloud-shortcode.php’; }
}
}

// fire up bundled extras
add_action(‘after_setup_theme’, ‘cb_bundled_extras’, 17);

// Review meta box + Top Reviews template meta box
if (is_admin()){

require_once get_template_directory() . ‘/library/extensions/cb-custom-meta.php’;
}

I have check not any missing syntax on function.php but check include file on your function.php.