EF4试图重新创建数据库，尽管它已经在那里了?

I'm using ASP.NET MVC 3 and have learnt through the MVC Music Store and other sources. I was able to create a database and have it live but the weird thing was about 5 hours after it was live it went down and had the following error and stack trace:I'm using ASP.NET MVC 3 and have learnt through