Invalid query: 1045:

It sounds like the values in wp-config.php for your database access no longer match the id/password for your database. Please confirm the login/password for your database via your Bluehost hosting control panel and then update wp-config.php to match.

ok – two-fold question to follow up then
…WHERE in BlueHost Control Panel am I confirming my datatbase login
AND
…I cannot access my “Edit CSS” in WordPress (it gives the same error)

Please contact Bluehost tech support for help using their control panel.

OK, so I got into the control panel and made sure the wp_config file from the root directory and the DB have the same password for the valid DB user (although I noticed the user mentioned in the error message is “root” and this is not my DB username).
I cleared cache and cookies and tried to load my page again, but I still have the same error.
Now what???
I also found that there was another wp_config in the public.html folder, and I also verified the DB password there by changing the actual password to what was listed in the file.

I’m stuck!

>>>

// ** MySQL settings – You can get this info from your web host ** //
/** The name of the database for WordPress */
define(‘DB_NAME’, ‘teachez2_wrd3’);

/** MySQL database username */
define(‘DB_USER’, ‘teachez2_wrd3’);

/** MySQL database password */
define(‘DB_PASSWORD’, ‘*****Hidden :-)***’);

/** MySQL hostname */
define(‘DB_HOST’, ‘localhost’);

/** Database Charset to use in creating database tables. */
define(‘DB_CHARSET’, ‘utf8’);

/** The Database Collate type. Don’t change this if in doubt. */
define(‘DB_COLLATE’, ”);

You should have only one wp-config.php file! Generally, this is in the wordpress root directory (usually public_html).