İlk defa Visual Stüdio 2013 de site hazırladım bunu publish edip yayına attım ve alttaki hata kodunu veriyor ne yapmalıyım.?

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
site : grafimood.com

Ek Olarak: Bu soruna yardım edecekler aranıyor :)