Just updated wordpress and my site has these error message now ... help

Hi, can you tell me what is happening with these error messages on my site : MomOnWheel.com.

_string(): Access denied for user 'root'@'localhost' (using password: NO) in /home3/cdloo/public_html/wp-content/plugins/easy-contact-forms/easy-contact-forms-database.php on line 152

Warning: mysql_real_escape_string(): A link to the server could not be established in /home3/cdloo/public_html/wp-content/plugins/easy-contact-forms/easy-contact-forms-database.php on line 152

Warning: Cannot modify header information - headers already sent by (output started at /home3/cdloo/public_html/wp-content/plugins/easy-contact-forms/easy-contact-forms-database.php:152) in /home3/cdloo/public_html/wp-admin/includes/misc.php on line 1116.

Thanks,
christy