Error

Database connection failed: SQLSTATE[HY000] [1698] Access denied for user 'root'@'localhost'

#0 /var/www/project/App/Core/Database.php(23): App\Core\Database->connect()
#1 /var/www/project/App/Core/Database.php(34): App\Core\Database->__construct()
#2 /var/www/project/App/Core/Model.php(18): App\Core\Database::getInstance()
#3 /var/www/project/App/Controllers/HomeController.php(19): App\Core\Model->__construct()
#4 [internal function]: App\Controllers\HomeController->index()
#5 /var/www/project/App/Core/Router.php(198): call_user_func_array()
#6 /var/www/project/App/Core/Router.php(147): App\Core\Router->executeRoute()
#7 /var/www/project/public/index.php(11): App\Core\Router->dispatch()
#8 {main}