EntityFramework - Entity proxy error

Question

I am working on a system using Entityframework and have been for over 12monts now, and the project has been going well, up until yesterday, where I have now got a strange er

Answer 1

I solved it this way.

using (var ctx = new MyContext())
      {
         ctx.Configuration.ProxyCreationEnabled = false;

         return ctx.Deferrals.AsNoTracking().Where(r => 
         r.DeferralID.Equals(deferralID)).FirstOrDefault();
      }