This is one of the most common database errors and is almost always caused by incorrect credentials or configuration.
1. Check Database Credentials
Verify your:
- Database name
- Username
- Password
- Host (usually localhost)
2. Check User Permissions
Ensure the database user is assigned to the database with All Privileges.
3. Check Configuration File
For example in WordPress, verify your wp-config.php file.
4. Database Server Issues
If credentials are correct, the MySQL server may be temporarily unavailable.
5. Corrupted Database
If the database is damaged, you may need to repair it using phpMyAdmin.
When to Contact Support
If everything appears correct but the issue persists, provide your domain and error details.
Done
You now know how to troubleshoot database connection errors.