: Uncaught Error: Call to undefined function mk_get_body_class() in /web/htdocs/www.aureagroup.eu/home/wp-content/themes/jupiter/header.php:21
Stack trace:
#0 /web/htdocs/www.aureagroup.eu/home/wp-includes/template.php(770): require_once()
#1 /web/htdocs/www.aureagroup.eu/home/wp-includes/template.php(716): load_template()
#2 /web/htdocs/www.aureagroup.eu/home/wp-includes/general-template.php(48): locate_template()
#3 /web/htdocs/www.aureagroup.eu/home/wp-content/themes/jupiter/page.php(8): get_header()
#4 /web/htdocs/www.aureagroup.eu/home/wp-includes/template-loader.php(106): include('/web/htdocs/www...')
#5 /web/htdocs/www.aureagroup.eu/home/wp-blog-header.php(19): require_once('/web/htdocs/www...')
#6 /web/htdocs/www.aureagroup.eu/home/index.php(17): require('/web/htdocs/www...')
#7 {main}
thrown in /web/htdocs/www.aureagroup.eu/home/wp-content/themes/jupiter/header.php on line 21