Cannot publish posts.

Hi,

When I try to publish posts I get the messages below (I have anonomized some of the code). I can view the site and view published posts, so as far as I can tell everything else is OK. I think I’m running version 2.2.1.

I would be grateful for any suggestions.

WordPress database error: [Access denied for user: 'dboxxxxxxxxx@%' to 

database 'dbxxxxxxxxx']
INSERT IGNORE INTO jghkhgjhposts (post_author, post_date, 

post_date_gmt, post_content, post_content_filtered, post_title, 

post_excerpt, post_status, post_type, comment_status, ping_status, 

post_password, post_name, to_ping, pinged, post_modified, 

post_modified_gmt, post_parent, menu_order, post_mime_type) VALUES 

('1', '2008-07-30 22:21:47', '2008-07-30 20:21:47', 'Test', '', 'Test', '', 'publish', 

'post', 'open', 'open', '', 'test', '', '', '2008-07-30 22:21:47', '2008-07-30 

20:21:47', '0', '0', '')

WordPress database error: [Access denied for user: 'dboxxxxxxxxx@%' to 

database 'dbxxxxxxxxx']
INSERT INTO jghkhgjhpost2cat (post_id, category_id) VALUES ('0', '3')

WordPress database error: [Access denied for user: 'dboxxxxxxxxx@%' to 

database 'dbxxxxxxxxx']
INSERT INTO jghkhgjhpostmeta (post_id,meta_key,meta_value) VALUES 

('0','_pingme','1')

WordPress database error: [Access denied for user: 'dboxxxxxxxxx@%' to 

database 'db1xxxxxxxxx']
INSERT INTO jghkhgjhpostmeta (post_id,meta_key,meta_value) VALUES 

('0','_encloseme','1')

Warning: Cannot modify header information - headers already sent by 

(output started at 

/homepages/7/d85157521/htdocs/domaining/wp-includes/wp-db.php:133) 

in /homepages/7/d85157521/htdocs/domaining/wp-includes/pluggable.php 

on line 331