( ! ) 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	401360	{main}( )	.../index.php:0
2	0.0002	402848	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414000	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0004	425936	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505408	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0344	5233224	require_wp_db( )	.../wp-settings.php:124
7	0.0373	5599688	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

401360

{main}( )

.../index.php:0

0.0002

402848

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

.../index.php:17

0.0003

414000

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

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

0.0004

425936

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

.../wp-load.php:37

0.0010

505408

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

.../wp-config.php:108

0.0344

5233224

require_wp_db( )

.../wp-settings.php:124

0.0373

5599688

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	401360	{main}( )	.../index.php:0
2	0.0002	402848	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414000	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0004	425936	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505408	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0344	5233224	require_wp_db( )	.../wp-settings.php:124
7	0.0373	5599688	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

401360

{main}( )

.../index.php:0

0.0002

402848

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

.../index.php:17

0.0003

414000

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

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

0.0004

425936

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

.../wp-load.php:37

0.0010

505408

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

.../wp-config.php:108

0.0344

5233224

require_wp_db( )

.../wp-settings.php:124

0.0373

5599688

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	401360	{main}( )	.../index.php:0
2	0.0002	402848	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414000	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0004	425936	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505408	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0344	5233224	require_wp_db( )	.../wp-settings.php:124
7	0.0373	5599688	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

401360

{main}( )

.../index.php:0

0.0002

402848

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

.../index.php:17

0.0003

414000

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

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

0.0004

425936

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

.../wp-load.php:37

0.0010

505408

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

.../wp-config.php:108

0.0344

5233224

require_wp_db( )

.../wp-settings.php:124

0.0373

5599688

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	401360	{main}( )	.../index.php:0
2	0.0002	402848	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414000	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0004	425936	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505408	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0344	5233224	require_wp_db( )	.../wp-settings.php:124
7	0.0373	5599688	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

401360

{main}( )

.../index.php:0

0.0002

402848

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

.../index.php:17

0.0003

414000

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

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

0.0004

425936

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

.../wp-load.php:37

0.0010

505408

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

.../wp-config.php:108

0.0344

5233224

require_wp_db( )

.../wp-settings.php:124

0.0373

5599688

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	401360	{main}( )	.../index.php:0
2	0.0002	402848	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414000	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0004	425936	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505408	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0344	5233224	require_wp_db( )	.../wp-settings.php:124
7	0.0373	5599688	require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )	.../load.php:515
8	0.0381	5650816	QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )	.../db.php:140
9	0.0382	5651416	QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )	.../db.php:75
10	0.0382	5651416	QM_DB->db_connect( $allow_bail = ??? )	.../wp-db.php:632
11	0.0382	5652608	mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.15'; public $client_version = 70415; 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

401360

{main}( )

.../index.php:0

0.0002

402848

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

.../index.php:17

0.0003

414000

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

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

0.0004

425936

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

.../wp-load.php:37

0.0010

505408

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

.../wp-config.php:108

0.0344

5233224

require_wp_db( )

.../wp-settings.php:124

0.0373

5599688

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

.../load.php:515

0.0381

5650816

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

.../db.php:140

0.0382

5651416

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

.../db.php:75

0.0382

5651416

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

.../wp-db.php:632

0.0382

5652608

mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.15'; public $client_version = 70415; 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	401360	{main}( )	.../index.php:0
2	0.0002	402848	require( '/home/twofoldsquare/public_html/wp-blog-header.php )	.../index.php:17
3	0.0003	414000	require_once( '/home/twofoldsquare/public_html/wp-load.php )	.../wp-blog-header.php:13
4	0.0004	425936	require_once( '/home/twofoldsquare/public_html/wp-config.php )	.../wp-load.php:37
5	0.0010	505408	require_once( '/home/twofoldsquare/public_html/wp-settings.php )	.../wp-config.php:108
6	0.0344	5233224	require_wp_db( )	.../wp-settings.php:124
7	0.0373	5599688	require_once( '/home/twofoldsquare/public_html/wp-content/plugins/query-monitor/wp-content/db.php )	.../load.php:515
8	0.0381	5650816	QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )	.../db.php:140
9	0.0382	5651416	QM_DB->__construct( $dbuser = 'DB_USER', $dbpassword = 'DB_PASSWORD', $dbname = 'DB_NAME', $dbhost = 'DB_HOST' )	.../db.php:75
10	0.0382	5651416	QM_DB->db_connect( $allow_bail = ??? )	.../wp-db.php:632
11	0.0382	5652608	mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.15'; public $client_version = 70415; 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

401360

{main}( )

.../index.php:0

0.0002

402848

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

.../index.php:17

0.0003

414000

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

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

0.0004

425936

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

.../wp-load.php:37

0.0010

505408

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

.../wp-config.php:108

0.0344

5233224

require_wp_db( )

.../wp-settings.php:124

0.0373

5599688

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

.../load.php:515

0.0381

5650816

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

.../db.php:140

0.0382

5651416

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

.../db.php:75

0.0382

5651416

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

.../wp-db.php:632

0.0382

5652608

mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.15'; public $client_version = 70415; 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.