Database error

Hallo master!! Ketika saya sedang dalam proses pembuatan database terjadi masalah seperti dibawah ini:

A PHP error was encountered

Severity: Warning

Message : mysqli::real_connect():(HY000/1044): Acces denied for user"'@localhost' to database 'sim-rs'

Filename: mysqli/mysqli_driver.php

Line number:201

Backtrace :

File : C:\xampp\htdocs\sim-rs\index.php Line 315 Function require_once

A Database error occurred

Unable to connect your database server using the provided settings.

Filename: C/xampp/htdocs/sim-rs-system/database/DB_driver.php

Line number :436