Fatal error: Uncaught Error: Call to undefined function wp_should_load_separate_core_block_assets() in /homepages/24/d254981134/htdocs/sis2019/wp-includes/blocks/index.php:29 Stack trace: #0 /homepages/24/d254981134/htdocs/sis2019/wp-includes/class-wp-hook.php(287): register_core_block_style_handles() #1 /homepages/24/d254981134/htdocs/sis2019/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters() #2 /homepages/24/d254981134/htdocs/sis2019/wp-includes/plugin.php(478): WP_Hook->do_action() #3 /homepages/24/d254981134/htdocs/sis2019/wp-settings.php(546): do_action() #4 /homepages/24/d254981134/htdocs/sis2019/wp-config.php(90): require_once('/homepages/24/d...') #5 /homepages/24/d254981134/htdocs/sis2019/wp-load.php(37): require_once('/homepages/24/d...') #6 /homepages/24/d254981134/htdocs/sis2019/wp-blog-header.php(13): require_once('/homepages/24/d...') #7 /homepages/24/d254981134/htdocs/sis2019/index.php(19): require('/homepages/24/d...') #8 {main} thrown in /homepages/24/d254981134/htdocs/sis2019/wp-includes/blocks/index.php on line 29