Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' in /var/www/html/web/backend/php/grid-editable-main/db_connect.php:7 Stack trace: #0 /var/www/html/web/backend/php/grid-editable-main/db_connect.php(7): mysqli_connect() #1 /var/www/html/web/backend/php/grid-editable-main/index.php(2): include_once('...') #2 {main} thrown in /var/www/html/web/backend/php/grid-editable-main/db_connect.php on line 7