Warning: mysqli_connect(): (HY000/2002): No such file or directory in /var/www/clients/client1/web2/web/includes/functions/database.php on line 7

Warning: mysqli_set_charset() expects parameter 1 to be mysqli, boolean given in /var/www/clients/client1/web2/web/includes/functions/database.php on line 18
Unable to connect to database server!