Fatal error: Uncaught Error: Call to undefined function mysqli_connect() in /var/www/html/admin/connection/index.php:10 Stack trace: #0 /var/www/html/components/menu/index.php(2): include() #1 /var/www/html/index.php(25): require_once('/var/www/html/c...') #2 {main} thrown in /var/www/html/admin/connection/index.php on line 10