MVC Login works locally but not on hosted site

Question

I started an MVC C# project with just the basic template from Visual Studio 2015. When I register a user and login in everything is fine. The db shows the user and it works as expected.

 

When I go to a host site and FTP the project as is with no changes to the code it appears OK but when I attempt to register or login I get a 500 error.

 

Not sure what I need to change to get this to work on the host site.

 

Any help would be appreciated.