Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' (using password: NO) in /opt/lampp/htdocs/tatsu/config/database.php:12 Stack trace: #0 /opt/lampp/htdocs/tatsu/config/database.php(12): mysqli->__construct('localhost', 'root', '', 'tatsu') #1 /opt/lampp/htdocs/tatsu/index.php(5): require_once('/opt/lampp/htdo...') #2 {main} thrown in /opt/lampp/htdocs/tatsu/config/database.php on line 12