Fatal error: Uncaught ArgumentCountError: mysqli_connect_errno() expects exactly 0 arguments, 1 given in /var/www/piskvorky2019/includes/db.php:8 Stack trace: #0 /var/www/piskvorky2019/includes/db.php(8): mysqli_connect_errno() #1 /var/www/piskvorky2019/includes/includes.php(2): require_once('...') #2 /var/www/piskvorky2019/header.php(6): require_once('...') #3 /var/www/piskvorky2019/index.php(2): require('...') #4 {main} thrown in /var/www/piskvorky2019/includes/db.php on line 8