Update database.php

application/config/database.php

-
 <?php defined("BASEPATH") OR exit("No direct script access allowed");$active_group = "default";
           $query_builder = TRUE;
 $db["default"] = array("dsn"  => "",
-"hostname" => "192.168.140.123", 
-"username" => "root" ,
+"hostname" => "localhost", 
+"username" => "techlabz_tukkibi" ,
 "password" => "Golden_123",
-"database" => "jensa_joyride",
+"database" => "techlabz_tukkibi",
 "dbdriver" => "mysqli",
 "pconnect" => FALSE,
 "db_debug" => (ENVIRONMENT !== "production"),