Fatal error: Uncaught ArgumentCountError: mysqli_query() expects at least 2 arguments, 1 given in /var/www/html/schilfprojekt/newsartikel.php:22 Stack trace: #0 /var/www/html/schilfprojekt/newsartikel.php(22): mysqli_query() #1 /var/www/html/schilfprojekt/index.php(537): include('...') #2 {main} thrown in /var/www/html/schilfprojekt/newsartikel.php on line 22