Hi there, is there any extra information about this set UP error?

<Can’t select database

We were able to connect to the database server (which means your username and password is okay) but not able to select the nameless_wrdp3 database.

Are you sure it exists?
Does the user nameless_wrdp3 have permission to use the nameless_wrdp3 database?
On some systems the name of your database is prefixed with your username, so it would be like username_nameless_wrdp3. Could that be the problem?