( ! ) Warning: Use of undefined constant DB_USER - assumed 'DB_USER' (this will throw an Error in a future version of PHP) in /home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php on line 140
Call Stack
#	Time	Memory	Function	Location
1	0.0001	401520	{main}( )	.../index.php:0
2	0.0002	403008	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414160	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0005	426096	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505568	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0342	5233616	require_wp_db( )	.../wp-settings.php:124
7	0.0371	5600080	require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )	.../load.php:515

( ! ) Warning: Use of undefined constant DB_USER - assumed 'DB_USER' (this will throw an Error in a future version of PHP) in /home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php on line 140

Call Stack

Time

Memory

Function

Location

0.0001

401520

{main}( )

.../index.php:0

0.0002

403008

require( '/home/twofoldsquare/public_html/wp-blog-header.php )

.../index.php:17

0.0003

414160

require_once( '/home/twofoldsquare/public_html/wp-load.php )

.../wp-blog-header.php:13

0.0005

426096

require_once( '/home/twofoldsquare/public_html/wp-config.php )

.../wp-load.php:37

0.0010

505568

require_once( '/home/twofoldsquare/public_html/wp-settings.php )

.../wp-config.php:108

0.0342

5233616

require_wp_db( )

.../wp-settings.php:124

0.0371

5600080

require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )

.../load.php:515

( ! ) Warning: Use of undefined constant DB_PASSWORD - assumed 'DB_PASSWORD' (this will throw an Error in a future version of PHP) in /home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php on line 140
Call Stack
#	Time	Memory	Function	Location
1	0.0001	401520	{main}( )	.../index.php:0
2	0.0002	403008	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414160	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0005	426096	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505568	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0342	5233616	require_wp_db( )	.../wp-settings.php:124
7	0.0371	5600080	require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )	.../load.php:515

( ! ) Warning: Use of undefined constant DB_PASSWORD - assumed 'DB_PASSWORD' (this will throw an Error in a future version of PHP) in /home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php on line 140

Call Stack

Time

Memory

Function

Location

0.0001

401520

{main}( )

.../index.php:0

0.0002

403008

require( '/home/twofoldsquare/public_html/wp-blog-header.php )

.../index.php:17

0.0003

414160

require_once( '/home/twofoldsquare/public_html/wp-load.php )

.../wp-blog-header.php:13

0.0005

426096

require_once( '/home/twofoldsquare/public_html/wp-config.php )

.../wp-load.php:37

0.0010

505568

require_once( '/home/twofoldsquare/public_html/wp-settings.php )

.../wp-config.php:108

0.0342

5233616

require_wp_db( )

.../wp-settings.php:124

0.0371

5600080

require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )

.../load.php:515

( ! ) Warning: Use of undefined constant DB_NAME - assumed 'DB_NAME' (this will throw an Error in a future version of PHP) in /home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php on line 140
Call Stack
#	Time	Memory	Function	Location
1	0.0001	401520	{main}( )	.../index.php:0
2	0.0002	403008	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414160	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0005	426096	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505568	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0342	5233616	require_wp_db( )	.../wp-settings.php:124
7	0.0371	5600080	require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )	.../load.php:515

( ! ) Warning: Use of undefined constant DB_NAME - assumed 'DB_NAME' (this will throw an Error in a future version of PHP) in /home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php on line 140

Call Stack

Time

Memory

Function

Location

0.0001

401520

{main}( )

.../index.php:0

0.0002

403008

require( '/home/twofoldsquare/public_html/wp-blog-header.php )

.../index.php:17

0.0003

414160

require_once( '/home/twofoldsquare/public_html/wp-load.php )

.../wp-blog-header.php:13

0.0005

426096

require_once( '/home/twofoldsquare/public_html/wp-config.php )

.../wp-load.php:37

0.0010

505568

require_once( '/home/twofoldsquare/public_html/wp-settings.php )

.../wp-config.php:108

0.0342

5233616

require_wp_db( )

.../wp-settings.php:124

0.0371

5600080

require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )

.../load.php:515

( ! ) Warning: Use of undefined constant DB_HOST - assumed 'DB_HOST' (this will throw an Error in a future version of PHP) in /home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php on line 140
Call Stack
#	Time	Memory	Function	Location
1	0.0001	401520	{main}( )	.../index.php:0
2	0.0002	403008	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414160	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0005	426096	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505568	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0342	5233616	require_wp_db( )	.../wp-settings.php:124
7	0.0371	5600080	require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )	.../load.php:515

( ! ) Warning: Use of undefined constant DB_HOST - assumed 'DB_HOST' (this will throw an Error in a future version of PHP) in /home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php on line 140

Call Stack

Time

Memory

Function

Location

0.0001

401520

{main}( )

.../index.php:0

0.0002

403008

require( '/home/twofoldsquare/public_html/wp-blog-header.php )

.../index.php:17

0.0003

414160

require_once( '/home/twofoldsquare/public_html/wp-load.php )

.../wp-blog-header.php:13

0.0005

426096

require_once( '/home/twofoldsquare/public_html/wp-config.php )

.../wp-load.php:37

0.0010

505568

require_once( '/home/twofoldsquare/public_html/wp-settings.php )

.../wp-config.php:108

0.0342

5233616

require_wp_db( )

.../wp-settings.php:124

0.0371

5600080

require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )

.../load.php:515

( ! ) Warning: mysqli_real_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/twofoldsquare/public_html/wp-includes/wp-db.php on line 1653
Call Stack
#	Time	Memory	Function	Location
1	0.0001	401520	{main}( )	.../index.php:0
2	0.0002	403008	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414160	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0005	426096	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505568	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0342	5233616	require_wp_db( )	.../wp-settings.php:124
7	0.0371	5600080	require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )	.../load.php:515
8	0.0380	5651208	QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )	.../db.php:140
9	0.0380	5651808	QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )	.../db.php:75
10	0.0380	5651808	QM_DB->db_connect( $allow_bail = ??? )	.../wp-db.php:632
11	0.0380	5653000	mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.19'; public $client_version = 70419; public $connect_errno = 0; public $connect_error = NULL; public $errno = 0; public $error = '' }, $host = 'DB_HOST', $user = 'DB_USER', $password = 'DB_PASSWORD', $database = NULL, $port = NULL, $socket = NULL, $flags = 0 )	.../wp-db.php:1653

( ! ) Warning: mysqli_real_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/twofoldsquare/public_html/wp-includes/wp-db.php on line 1653

Call Stack

Time

Memory

Function

Location

0.0001

401520

{main}( )

.../index.php:0

0.0002

403008

require( '/home/twofoldsquare/public_html/wp-blog-header.php )

.../index.php:17

0.0003

414160

require_once( '/home/twofoldsquare/public_html/wp-load.php )

.../wp-blog-header.php:13

0.0005

426096

require_once( '/home/twofoldsquare/public_html/wp-config.php )

.../wp-load.php:37

0.0010

505568

require_once( '/home/twofoldsquare/public_html/wp-settings.php )

.../wp-config.php:108

0.0342

5233616

require_wp_db( )

.../wp-settings.php:124

0.0371

5600080

require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )

.../load.php:515

0.0380

5651208

QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )

.../db.php:140

0.0380

5651808

QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )

.../db.php:75

0.0380

5651808

QM_DB->db_connect( $allow_bail = ??? )

.../wp-db.php:632

0.0380

5653000

mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.19'; public $client_version = 70419; public $connect_errno = 0; public $connect_error = NULL; public $errno = 0; public $error = '' }, $host = 'DB_HOST', $user = 'DB_USER', $password = 'DB_PASSWORD', $database = NULL, $port = NULL, $socket = NULL, $flags = 0 )

.../wp-db.php:1653

( ! ) Warning: mysqli_real_connect(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/twofoldsquare/public_html/wp-includes/wp-db.php on line 1653
Call Stack
#	Time	Memory	Function	Location
1	0.0001	401520	{main}( )	.../index.php:0
2	0.0002	403008	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414160	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0005	426096	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505568	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0342	5233616	require_wp_db( )	.../wp-settings.php:124
7	0.0371	5600080	require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )	.../load.php:515
8	0.0380	5651208	QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )	.../db.php:140
9	0.0380	5651808	QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )	.../db.php:75
10	0.0380	5651808	QM_DB->db_connect( $allow_bail = ??? )	.../wp-db.php:632
11	0.0380	5653000	mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.19'; public $client_version = 70419; public $connect_errno = 2002; public $connect_error = 'php_network_getaddresses: getaddrinfo failed: Name or service not known'; public $errno = 2002; public $error = 'php_network_getaddresses: getaddrinfo failed: Name or service not known' }, $host = 'DB_HOST', $user = 'DB_USER', $password = 'DB_PASSWORD', $database = NULL, $port = NULL, $socket = NULL, $flags = 0 )	.../wp-db.php:1653

( ! ) Warning: mysqli_real_connect(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/twofoldsquare/public_html/wp-includes/wp-db.php on line 1653

Call Stack

Time

Memory

Function

Location

0.0001

401520

{main}( )

.../index.php:0

0.0002

403008

require( '/home/twofoldsquare/public_html/wp-blog-header.php )

.../index.php:17

0.0003

414160

require_once( '/home/twofoldsquare/public_html/wp-load.php )

.../wp-blog-header.php:13

0.0005

426096

require_once( '/home/twofoldsquare/public_html/wp-config.php )

.../wp-load.php:37

0.0010

505568

require_once( '/home/twofoldsquare/public_html/wp-settings.php )

.../wp-config.php:108

0.0342

5233616

require_wp_db( )

.../wp-settings.php:124

0.0371

5600080

require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )

.../load.php:515

0.0380

5651208

QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )

.../db.php:140

0.0380

5651808

QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )

.../db.php:75

0.0380

5651808

QM_DB->db_connect( $allow_bail = ??? )

.../wp-db.php:632

0.0380

5653000

mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.19'; public $client_version = 70419; public $connect_errno = 2002; public $connect_error = 'php_network_getaddresses: getaddrinfo failed: Name or service not known'; public $errno = 2002; public $error = 'php_network_getaddresses: getaddrinfo failed: Name or service not known' }, $host = 'DB_HOST', $user = 'DB_USER', $password = 'DB_PASSWORD', $database = NULL, $port = NULL, $socket = NULL, $flags = 0 )

.../wp-db.php:1653

php_network_getaddresses: getaddrinfo failed: Name or service not known

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.

Are you sure you have the correct username and password?
Are you sure you have typed the correct hostname?
Are you sure the database server is running?

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.