Fatal error: Uncaught Error: Call to undefined function mysqli_connect() in /var/www/vhosts/nsi-7.com/httpdocs/scripts/database.php:5
Stack trace:
#0 /var/www/vhosts/nsi-7.com/httpdocs/index.php(14): include_once()
#1 {main}
  thrown in /var/www/vhosts/nsi-7.com/httpdocs/scripts/database.php on line 5