Fatal error: Uncaught Error: Call to undefined function wp_body_open() in /pub/dermis_com_pl/wp-content/themes/hello-elementor/header.php:28 Stack trace: #0 /pub/dermis_com_pl/wp-includes/template.php(688): require_once() #1 /pub/dermis_com_pl/wp-includes/template.php(647): load_template('/pub/dermis_com...', true) #2 /pub/dermis_com_pl/wp-includes/general-template.php(41): locate_template(Array, true) #3 /pub/dermis_com_pl/wp-content/themes/hello-elementor/index.php(15): get_header() #4 /pub/dermis_com_pl/wp-includes/template-loader.php(74): include('/pub/dermis_com...') #5 /pub/dermis_com_pl/wp-blog-header.php(19): require_once('/pub/dermis_com...') #6 /pub/dermis_com_pl/index.php(17): require('/pub/dermis_com...') #7 {main} thrown in /pub/dermis_com_pl/wp-content/themes/hello-elementor/header.php on line 28