A PHP Error was encountered

Severity: Warning

Message: mysqli_connect(): (28000/1045): Access denied for user 'root'@'localhost' (using password: NO)

Filename: views/dathang.php

Line Number: 18

Backtrace:

File: /home/ygnwahsghosting/public_html/vuonuomsomot.com/application/views/dathang.php
Line: 18
Function: mysqli_connect

File: /home/ygnwahsghosting/public_html/vuonuomsomot.com/application/controllers/Dathang.php
Line: 29
Function: view

File: /home/ygnwahsghosting/public_html/vuonuomsomot.com/index.php
Line: 317
Function: require_once

Error connect to database