( ! ) Warning: mysqli_real_connect(): (HY000/2002): Connection refused in /var/www/nourishparis.fr/htdocs/wp-includes/wp-db.php on line 1633
Call Stack
#	Time	Memory	Function	Location
1	0.0078	1337072	{main}( )	.../index.php:0
2	0.0078	1339360	require( '/var/www/nourishparis.fr/htdocs/wp-blog-header.php' )	.../index.php:17
3	0.0078	1339808	require_once( '/var/www/nourishparis.fr/htdocs/wp-load.php' )	.../wp-blog-header.php:13
4	0.0079	1340288	require_once( '/var/www/nourishparis.fr/htdocs/wp-config.php' )	.../wp-load.php:37
5	0.0079	1341888	require_once( '/var/www/nourishparis.fr/htdocs/wp-settings.php' )	.../wp-config.php:91
6	0.0126	1911704	require_wp_db( )	.../wp-settings.php:116
7	0.0127	1936024	require_once( '/var/www/nourishparis.fr/htdocs/wp-content/plugins/query-monitor/wp-content/db.php' )	.../load.php:413
8	0.0128	1940104	QM_DB->__construct( )	.../db.php:139
9	0.0128	1940776	QM_DB->__construct( )	.../db.php:75
10	0.0128	1941184	QM_DB->db_connect( )	.../wp-db.php:632
11	0.0129	1942760	mysqli_real_connect ( )	.../wp-db.php:1633

( ! ) Warning: mysqli_real_connect(): (HY000/2002): Connection refused in /var/www/nourishparis.fr/htdocs/wp-includes/wp-db.php on line 1633

Call Stack

Time

Memory

Function

Location

0.0078

1337072

{main}( )

.../index.php:0

0.0078

1339360

require( '/var/www/nourishparis.fr/htdocs/wp-blog-header.php' )

.../index.php:17

0.0078

1339808

require_once( '/var/www/nourishparis.fr/htdocs/wp-load.php' )

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

0.0079

1340288

require_once( '/var/www/nourishparis.fr/htdocs/wp-config.php' )

.../wp-load.php:37

0.0079

1341888

require_once( '/var/www/nourishparis.fr/htdocs/wp-settings.php' )

.../wp-config.php:91

0.0126

1911704

require_wp_db( )

.../wp-settings.php:116

0.0127

1936024

require_once( '/var/www/nourishparis.fr/htdocs/wp-content/plugins/query-monitor/wp-content/db.php' )

.../load.php:413

0.0128

1940104

QM_DB->__construct( )

.../db.php:139

0.0128

1940776

QM_DB->__construct( )

.../db.php:75

0.0128

1941184

QM_DB->db_connect( )

.../wp-db.php:632

0.0129

1942760

mysqli_real_connect ( )

.../wp-db.php:1633

Connection refused

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 localhost. 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.