Fatal error: Uncaught Error: Call to undefined function language_attributes() in /home/pacs/vcg00/users/compgen.de/wordpress/wp-includes/theme-compat/header-embed.php:19 Stack trace: #0 {main} thrown in /home/pacs/vcg00/users/compgen.de/wordpress/wp-includes/theme-compat/header-embed.php on line 19