Problem with database

My place has been put out of line, with spam coments, and a error had ocurr in th conection with the database:

$dbh = DBI->connect(“DBI:mysql:lajungla_wrdp1:localhost”,”lajungla_wrdp1″,”<PASSWORD HERE>”);
PHP $dbh=mysql_connect (“localhost”, “lajungla_wrdp1”, “<PASSWORD HERE>”) or die (‘I cannot connect to the database because: ‘ . mysql_error());
mysql_select_db (“lajungla_wrdp1”);

Warning: require_once() [function.require-once]: Unable to access /home/lajungla/public_html/wp-includes/wp-db.php in /home/lajungla/public_html/wp-settings.php on line 100

Warning: require_once(/home/lajungla/public_html/wp-includes/wp-db.php) [function.require-once]: failed to open stream: Permission denied in /home/lajungla/public_html/wp-settings.php on line 100

Fatal error: require_once() [function.require]: Failed opening required ‘/home/lajungla/public_html/wp-includes/wp-db.php’ (include_path=’.:/usr/lib/php’) in /home/lajungla/public_html/wp-settings.php on line 100

I need any kind of help with this damage.

Thanks a lot.