WordPress needs a specific login and password to access the database. The login credentials are stored in the wp-config.php file. If the password to access the database is changed for any reason, then you will need to update this file as well. If the login credentials do not match, the Wordpress will not be able to connect to the database.

You can alter the wp-config.php file through FTP connection or follow the steps below to edit the file in your Control Panel. 

• Classic Hosting
• Plesk Hosting

Classic Hosting (Pathfinder, Adventurer, Globetrotter)

Step 1:

Log into your Rebel account and visit Hosting Manager

Step 2: 

Click directly on Control Panel for the intended hosting package. 

Step 3: 

On the left-hand side, click on Tools, then File Manager. 

Step 4:

Click the root folder for your site, usually either public or rbl_wordpressm or dac_wordpress.  If you have a WordPress site you can open the wp-config.php file by clicking the white page icon to the far right of the file.  

Step 5:

Find the line below:

/** MySQL database password */
define('DB_PASSWORD', '12$forexample$%^');

Replace the current password inside of the apostrophes with your new password. 

Roll down to the end and click "Save as". 

Plesk (Personal/Startup/Business Hosting, Managed Wordpress, VPS)

Step 1:

Log into your Rebel account and visit Hosting Manager

Step 2: 

Click directly on Control Panel for the intended hosting package. 

Step 3:

Click on "File Manager" under your domain name

Step 4: 

The database password can be changed by clicking directly on wp.config.php file. 

Edit the required info and click OK

Click here to see how to change your Plesk Views:
https://support.rebel.com/hc/en-us/articles/7539485976987-How-do-I-change-my-Plesk-view-mode-