If you receive an error message stating that your website cannot connect to the database, or if your website is displaying a white screen of death, it probably means that your database connection is not working correctly. Here are the steps to find and fix database connection errors for WordPress:
1. Verify the database details: Ensure that the database name, username, and password in the wp-config.php file are correct. Open the wp-config.php file located in the root directory of your WordPress installation and look for the database name, username, and password.
1. Check the database server: Check whether the database server is running or not. Most of the web hosting providers offer an online control panel where you can check the status of your server. You can also contact your hosting support to investigate the issue.
1. Repair tables: If you suspect that your database tables are damaged or corrupted, you can try using the built-in repair feature in WordPress. You can access this by adding the following line to your wp-config.php file: define(‘WP_ALLOW_REPAIR’, true); then navigate to http://yoursite.com/wp-admin/maint/repair.php. Click on the ”Repair Database” button, and WordPress will attempt to repair any damaged tables.
1. Check WordPress version and plugins: Check your WordPress version and ensure that all plugins are up to date. Some plugins may cause conflicts with your database, especially if they are not updated to the latest version.
1. Contact your hosting provider: If none of the above solutions have resolved the issue, it is best to contact your hosting provider for assistance. They may be able to investigate the root cause and provide a solution.