( ! ) Notice: Use of undefined constant DB_USER - assumed 'DB_USER' in /var/www/cms/wp-includes/load.php on line 352
Call Stack
#TimeMemoryFunctionLocation
10.0000227848{main}( )../index.php:0
20.0001230496require( '/var/www/cms/wp-blog-header.php' )../index.php:17
30.0002241408require_once( '/var/www/cms/wp-load.php' )../wp-blog-header.php:12
40.0003253896require_once( '/var/www/cms/wp-config.php' )../wp-load.php:29
50.0004306160require_once( '/var/www/cms/wp-settings.php' )../wp-config.php:112
60.00171494680require_wp_db( )../wp-settings.php:79

( ! ) Notice: Use of undefined constant DB_PASSWORD - assumed 'DB_PASSWORD' in /var/www/cms/wp-includes/load.php on line 352
Call Stack
#TimeMemoryFunctionLocation
10.0000227848{main}( )../index.php:0
20.0001230496require( '/var/www/cms/wp-blog-header.php' )../index.php:17
30.0002241408require_once( '/var/www/cms/wp-load.php' )../wp-blog-header.php:12
40.0003253896require_once( '/var/www/cms/wp-config.php' )../wp-load.php:29
50.0004306160require_once( '/var/www/cms/wp-settings.php' )../wp-config.php:112
60.00171494680require_wp_db( )../wp-settings.php:79

( ! ) Notice: Use of undefined constant DB_NAME - assumed 'DB_NAME' in /var/www/cms/wp-includes/load.php on line 352
Call Stack
#TimeMemoryFunctionLocation
10.0000227848{main}( )../index.php:0
20.0001230496require( '/var/www/cms/wp-blog-header.php' )../index.php:17
30.0002241408require_once( '/var/www/cms/wp-load.php' )../wp-blog-header.php:12
40.0003253896require_once( '/var/www/cms/wp-config.php' )../wp-load.php:29
50.0004306160require_once( '/var/www/cms/wp-settings.php' )../wp-config.php:112
60.00171494680require_wp_db( )../wp-settings.php:79

( ! ) Notice: Use of undefined constant DB_HOST - assumed 'DB_HOST' in /var/www/cms/wp-includes/load.php on line 352
Call Stack
#TimeMemoryFunctionLocation
10.0000227848{main}( )../index.php:0
20.0001230496require( '/var/www/cms/wp-blog-header.php' )../index.php:17
30.0002241408require_once( '/var/www/cms/wp-load.php' )../wp-blog-header.php:12
40.0003253896require_once( '/var/www/cms/wp-config.php' )../wp-load.php:29
50.0004306160require_once( '/var/www/cms/wp-settings.php' )../wp-config.php:112
60.00171494680require_wp_db( )../wp-settings.php:79

( ! ) Warning: mysql_connect(): Unknown MySQL server host 'DB_HOST' (2) in /var/www/cms/wp-includes/wp-db.php on line 1454
Call Stack
#TimeMemoryFunctionLocation
10.0000227848{main}( )../index.php:0
20.0001230496require( '/var/www/cms/wp-blog-header.php' )../index.php:17
30.0002241408require_once( '/var/www/cms/wp-load.php' )../wp-blog-header.php:12
40.0003253896require_once( '/var/www/cms/wp-config.php' )../wp-load.php:29
50.0004306160require_once( '/var/www/cms/wp-settings.php' )../wp-config.php:112
60.00171494680require_wp_db( )../wp-settings.php:79
70.00241803192wpdb->__construct( )../load.php:352
80.00251804672wpdb->db_connect( )../wp-db.php:649
90.00251805744mysql_connect ( )../wp-db.php:1454
WordPress › Error

Error establishing a database connection

This either means that the username and password information in your wp-config.php file is incorrect or we can't contact the database server at DB_HOST. This could mean your host's database server is down.

If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.