Fatal error: Uncaught Error: Call to undefined function has_block() in /www/wwwroot/www.ihaoer.cn/wp-content/themes/dt-the7-patched/dt-the7-patched/functions.php:1886 Stack trace: #0 /www/wwwroot/www.ihaoer.cn/wp-includes/class-wp-hook.php(298): ihaoer_schema_jsonld('') #1 /www/wwwroot/www.ihaoer.cn/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array) #2 /www/wwwroot/www.ihaoer.cn/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /www/wwwroot/www.ihaoer.cn/wp-includes/general-template.php(2589): do_action('wp_head') #4 /www/wwwroot/www.ihaoer.cn/wp-content/themes/dt-the7-patched/dt-the7-patched/header.php(33): wp_head() #5 /www/wwwroot/www.ihaoer.cn/wp-includes/template.php(688): require_once('/www/wwwroot/ww...') #6 /www/wwwroot/www.ihaoer.cn/wp-includes/template.php(647): load_template('/www/wwwroot/ww...', true) #7 /www/wwwroot/www.ihaoer.cn/wp-includes/general-template.php(45): locate_template(Array, true) #8 /www/wwwroot/www.ihaoer.cn/wp-content/themes/dt-the7-patched/dt-the7-patched/single in /www/wwwroot/www.ihaoer.cn/wp-content/themes/dt-the7-patched/dt-the7-patched/functions.php on line 1886