Access denied for user 'root'@'localhost' (using password: YES)

This error message indicates that the user 'root' is being denied access to the database on the local machine. The reason for this denial could be due to an incorrect password or insufficient privileges for the 'root' user.

To resolve this issue, you can try the following steps:

1. Check if the password for the 'root' user is correct. If it is incorrect, reset the password using the appropriate command.

2. Ensure that the 'root' user has sufficient privileges to access the database. You can grant privileges to the user using the GRANT command.

3. Check if the MySQL server is running and the correct port is being used.

4. Check if the firewall is blocking the connection.

If none of the above solutions work, you may need to consult with a database administrator or a technical support team for further assistance.