A Database Error Occurred pada codeigniter

Permisi saya mau bertanya kenapa ini bisa terjadi? Sebelumnya saya telah buat nama database sesuai nama database yang dianjurkan oleh developer.

berikut pesan kesalahan yang tampil:

A PHP Error was encountered Severity: Warning

Message: mysqli::real_connect(): (HY000/1049): Unknown database 'sximo_ci3_v1'

Filename: mysqli/mysqli_driver.php

Line Number: 135

Backtrace:

File: C:\xampp\htdocs\crud-builder\application\core\SB_Controller.php Line: 9 Function: __construct

File: C:\xampp\htdocs\crud-builder\application\controllers\Page.php Line: 11 Function: __construct

File: C:\xampp\htdocs\crud-builder\index.php Line: 293 Function: require_once

A Database Error Occurred Unable to connect to your database server using the provided settings.

Filename: C:/xampp/htdocs/crud-builder/application/core/SB_Controller.php

Line Number: 9

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