( ! ) Warning: mysqli_real_connect(): (HY000/2002): No such file or directory in /var/www/nabin.edu.np/wp-includes/class-wpdb.php on line 1775
Call Stack
#	Time	Memory	Function	Location
1	0.0001	361048	{main}( )	.../index.php:0
2	0.0001	361328	require( '/var/www/nabin.edu.np/wp-blog-header.php )	.../index.php:17
3	0.0001	361712	require_once( '/var/www/nabin.edu.np/wp-load.php )	.../wp-blog-header.php:13
4	0.0001	362408	require_once( '/var/www/nabin.edu.np/wp-config.php )	.../wp-load.php:50
5	0.0001	363864	require_once( '/var/www/nabin.edu.np/wp-settings.php )	.../wp-config.php:85
6	0.0007	577264	require_wp_db( )	.../wp-settings.php:124
7	0.0007	579064	wpdb->__construct( $dbuser = 'Sit$use0', $dbpassword = '554053b0f0c8324', $dbname = 'dbnabindb152sv', $dbhost = 'localhost:3306' )	.../load.php:562
8	0.0007	579064	wpdb->db_connect( $allow_bail = ??? )	.../class-wpdb.php:734
9	0.0007	579944	mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.33'; public $client_version = 70433; public $connect_errno = 2002; public $connect_error = 'No such file or directory'; public $errno = 2002; public $error = 'No such file or directory' }, $host = 'localhost', $user = 'Sit$use0', $password = '554053b0f0c8324', $database = NULL, $port = 3306, $socket = NULL, $flags = 0 )	.../class-wpdb.php:1775

( ! ) Warning: mysqli_real_connect(): (HY000/2002): No such file or directory in /var/www/nabin.edu.np/wp-includes/class-wpdb.php on line 1775

Call Stack

Time

Memory

Function

Location

0.0001

361048

{main}( )

.../index.php:0

0.0001

361328

require( '/var/www/nabin.edu.np/wp-blog-header.php )

.../index.php:17

0.0001

361712

require_once( '/var/www/nabin.edu.np/wp-load.php )

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

0.0001

362408

require_once( '/var/www/nabin.edu.np/wp-config.php )

.../wp-load.php:50

0.0001

363864

require_once( '/var/www/nabin.edu.np/wp-settings.php )

.../wp-config.php:85

0.0007

577264

require_wp_db( )

.../wp-settings.php:124

0.0007

579064

wpdb->__construct( $dbuser = 'Sit$use0', $dbpassword = '554053b0f0c8324', $dbname = 'dbnabindb152sv', $dbhost = 'localhost:3306' )

.../load.php:562

0.0007

579064

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

.../class-wpdb.php:734

0.0007

579944

mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.33'; public $client_version = 70433; public $connect_errno = 2002; public $connect_error = 'No such file or directory'; public $errno = 2002; public $error = 'No such file or directory' }, $host = 'localhost', $user = 'Sit$use0', $password = '554053b0f0c8324', $database = NULL, $port = 3306, $socket = NULL, $flags = 0 )

.../class-wpdb.php:1775

No such file or directory

Error establishing a database connection

This either means that the username and password information in your wp-config.php file is incorrect or that contact with the database server at localhost:3306 could not be established. 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 are unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.