Fatal error: Uncaught ArgumentCountError: mysqli_query() expects at least 2 arguments, 1 given in /var/www/onhook/project/classes/db.class.php:10 Stack trace: #0 /var/www/onhook/project/classes/db.class.php(10): mysqli_query() #1 /var/www/onhook/www/start.php(27): DB::connect() #2 /var/www/onhook/www/index.php(2): include('...') #3 {main} thrown in /var/www/onhook/project/classes/db.class.php on line 10