Fatal error: Uncaught Error: Call to undefined function get_header() in /var/www/vhosts/dezentraleschule-kreisoffenbach.de/httpdocs/wp-content/themes/DFE220920a/index.php:1
Stack trace:
#0 {main}
thrown in /var/www/vhosts/dezentraleschule-kreisoffenbach.de/httpdocs/wp-content/themes/DFE220920a/index.php on line 1