Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "wp_initialize_theme_preview_hooks" not found or invalid function name in /srv/vhost/anesilab.com/home/html/wp-includes/class-wp-hook.php:308 Stack trace: #0 /srv/vhost/anesilab.com/home/html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #1 /srv/vhost/anesilab.com/home/html/wp-includes/plugin.php(517): WP_Hook->do_action() #2 /srv/vhost/anesilab.com/home/html/wp-settings.php(480): do_action() #3 /srv/vhost/anesilab.com/home/html/wp-config.php(102): require_once('...') #4 /srv/vhost/anesilab.com/home/html/wp-load.php(50): require_once('...') #5 /srv/vhost/anesilab.com/home/html/wp-blog-header.php(13): require_once('...') #6 /srv/vhost/anesilab.com/home/html/index.php(17): require('...') #7 {main} thrown in /srv/vhost/anesilab.com/home/html/wp-includes/class-wp-hook.php on line 308

Fatal error: Uncaught Error: Class "WP_Translation_Controller" not found in /srv/vhost/anesilab.com/home/html/wp-includes/l10n.php:796 Stack trace: #0 /srv/vhost/anesilab.com/home/html/wp-includes/l10n.php(953): load_textdomain() #1 /srv/vhost/anesilab.com/home/html/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /srv/vhost/anesilab.com/home/html/wp-includes/l10n.php on line 796