My b2evolution Version: 3.3.1

In trying to deal with a different SQL error caused by my web host, I changed the admin credentials to the database and now I get the following when attempting to access my site.

Error establishing a database connection!

(mysql_connect(): Access denied for user '19_02df42f_1'@'10.49.7.105' (using password: YES))

The login is no longer '19_02df42f_1' and the password is different (didn't know what it was before because the DB was setup by default through my host.

I think it's obvious I have to update a php file somewhere that stores the default login to run the site, but I can't find it anywhere.

Does anyone know off hand in which file that is stored?