Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' (using password: YES) in /var/www/app/system/database/drivers/mysqli/mysqli_driver.php:77 Stack trace: #0 /var/www/app/system/database/drivers/mysqli/mysqli_driver.php(77): mysqli_connect() #1 /var/www/app/system/database/DB_driver.php(115): CI_DB_mysqli_driver->db_connect() #2 /var/www/app/system/database/DB.php(140): CI_DB_driver->initialize() #3 /var/www/app/system/libraries/Loader.php(224): DB() #4 /var/www/app/system/application/libraries/MY_Model.php(241): CI_Loader->database() #5 /var/www/app/system/application/models/user/m_usuario.php(49): MY_Model->__construct() #6 /var/www/app/system/libraries/Loader.php(184): M_Usuario->__construct() #7 /var/www/app/system/application/libraries/Userauth.php(56): CI_Loader->model() #8 /var/www/app/system/libraries/Loader.php(928): Userauth->__construct() #9 /var/www/app/system/libraries/Loader.php(829): CI_Loader->_ci_init_class() #10 /var/www/app/system/libraries/Loader.php(96): CI_Loader->_ci_load_class() #11 /var/www/app/system/application/controllers/sys/app.php(32): CI_Loader->library() #12 /var/www/app/system/codeigniter/CodeIgniter.php(201): App->__construct() #13 /var/www/app/index.php(169): require_once('...') #14 {main} thrown in /var/www/app/system/database/drivers/mysqli/mysqli_driver.php on line 77