merhaba panel baglanırken bu hata cıkıyor yardımcı olabilecek biri varmı acaba

A PHP Error was encountered

Severity: Warning
Message: mysqli::real_connect(): (28000/1045): Access denied for user '......'@'localhost' (using password: YES)
Filename: mysqli/mysqli_driver.php
Line Number: 201
Backtrace:
File: /home/arabilisim/domains/.........com.tr/public_html/panel/application/controllers/Dashboard.php
Line: 11
Function: __construct
File: /home/arabilisim/domains/......... .com.tr/public_html/panel/index.php
Line: 317
Function: require_once