We were able to connect to the MySQL database server (which means your username and password are okay) but not able to select the database.
The MySQL error was: Access denied for user 'db29871'@'%' to database 'db29871_ttm_try'.
Currently, the database is db29871_ttm_try. The username is db29871 and the database server is internal-db.s29871.gridserver.com.
For more help, see the Installation and upgrading handbook. If you are unsure what these terms mean you should probably contact your hosting provider.