While obviously this is 13 (and not 10), the issue is simply that the server cannot connect to the config database. In a production environment, you shouldn't see this but SQL Server 2012 has a nastly habit of not starting up on a reboot (even though set to Automatic):
In a dev environment, it happens a lot! If SP was working, that's the first place to check. Simply start the SQL Server and SQL Server Agent and SP should come right up.