MVC3 Database entities don't get initialized as expected

after carefully researching for a solution to this strange problem that I have and accomplished nothing. I am pretty much desperated.

I am working on a MVC3 project.

I have a DB Context class like this:

//SpaceUpEntities.cs
public class SpaceUpEntities: DbContext
{
    public DbSet<User> Users { get; set; }
    public DbSet<Profile> Profiles { get; set; }
    public DbSet<Venue> Venues { get; set; }
    public DbSet<Room> Rooms { get; set; }
    public DbSet<Category> Categories { get; set; }
    public DbSet<Event> Events { get; set; }
    public DbSet<Capacity> Capacities { get; set; }
    public DbSet<VenueStatus> VenueStatuses { get; set; } 
}

and I initialize DBContext when application start

//Global.asax.cs
 protected void Application_Start()
 {
        Database.SetInitializer<SpaceUpEntities>(null);  
        AreaRegistration.RegisterAllAreas();
        RegisterGlobalFilters(GlobalFilters.Filters);
        RegisterRoutes(RouteTable.Routes);
        RegisterDependencyInjection();
        ModelBinders.Binders.DefaultBinder = new TrimModelBinder();
 }

The problem occurs when I want to query/Insert/Update to the DB. For example this piece of code

 //SecurityRepository.cs 
    public RegisterFeedback Register(User user, Profile profile)
    {
        try
        {
            using (var entities = new SpaceUpEntities())
            {  
                // Check existing email address
                var emailExisted = entities.Users.FirstOrDefault(i => i.Email == user.Email);
                //... So on 
            }
        }
        catch (Exception e)
        {
            Logger.Error(e);
            return new RegisterFeedback(false, Messages.GeneralError);
        }
    }

After using (var entities = new SpaceUpEntities()) entities should have been initialized but I ended up with this error

Error Message:

Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation.

Initially, I thought it was a connection problem to my server, so I checked:

1. ConnectionString
2. SQL Server setting (SQL Server 2012)

Although I can hardly see why they are the cause of this problem since I took serveral methods to test my ConnectionString to find it has no issue.

Any help would certainly be appreciated. Thank you in advance.

Thang Do

P/S: this is how I tested my connection string: This is my connection string I tested it with this