Can't Connect to the DB!

Deprecated: mysql_query(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /mnt/web-data2/numex_cz/public_html/www/MySQL.inc on line 42 Warning: mysql_query(): No such file or directory in /mnt/web-data2/numex_cz/public_html/www/MySQL.inc on line 42 Warning: mysql_query(): A link to the server could not be established in /mnt/web-data2/numex_cz/public_html/www/MySQL.inc on line 42 No such file or directory