Erro login após actualização

Boa tarde,

ao entrar no wp-admin do site http://www.carcaraportugal.com apareceu-me a mensagem de actualização do wordpress. Ao iniciar a actualização esta falhou e agora não consigo aceder ao wp-admin ou sequer abrir o site.
Da última vez que o browser ainda carregou a página, esta era a mensagem que aparecia:

Warning: mysql_query() [function.mysql-query]: Access denied for user ‘root’@’localhost’ (using password: NO) in /home/carcarap/public_html/wp-content/themes/rockwell_v1.7.1/freshwork/functions/freshoptions.php on line 33

Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in /home/carcarap/public_html/wp-content/themes/rockwell_v1.7.1/freshwork/functions/freshoptions.php on line 33

Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in /home/carcarap/public_html/wp-content/themes/rockwell_v1.7.1/freshwork/functions/freshoptions.php on line 34

Warning: Cannot modify header information – headers already sent by (output started at /home/carcarap/public_html/wp-content/themes/rockwell_v1.7.1/freshwork/functions/freshoptions.php:33) in /home/carcarap/public_html/wp-content/plugins/wp-maintenance-mode/includes/classes/wp-maintenance-mode.php on line 523

Warning: Cannot modify header information – headers already sent by (output started at /home/carcarap/public_html/wp-content/themes/rockwell_v1.7.1/freshwork/functions/freshoptions.php:33) in /home/carcarap/public_html/wp-content/plugins/wp-maintenance-mode/includes/classes/wp-maintenance-mode.php on line 524

Warning: Cannot modify header information – headers already sent by (output started at /home/carcarap/public_html/wp-content/themes/rockwell_v1.7.1/freshwork/functions/freshoptions.php:33) in /home/carcarap/public_html/wp-content/plugins/wp-maintenance-mode/includes/classes/wp-maintenance-mode.php on line 525

A página onde preciso de ajuda: [Inicie a sessão para ver a ligação]