A MySQL or MariaDB “Access denied” error usually means the connection credentials or privileges do not match what the server expects.
- Verify the database name, database username, password, and host used by the application.
- In cPanel Manage My Databases, confirm the database user exists.
- Confirm that the user is assigned to the intended database with the privileges the application requires.
- If the password was recently changed, update the application configuration to match.
- Check whether the application is trying to connect remotely when the database is local, or vice versa.
Do not confuse the cPanel account password with a database-user password; they are separate credentials.
