Fix! <<<<<<< .mine =======
Version: 0.0.1

Fatal error: Uncaught Error: Call to undefined function printHeader() in /var/www/html/satre/ubicomp/fastlegevakten/index.php:51 Stack trace: #0 {main} thrown in /var/www/html/satre/ubicomp/fastlegevakten/index.php on line 51