If you get:
An unhandled exception of type ‘System.TypeInitializationException’ occurred in RSSFeeder.exe
Additional information: The type initializer for “RSSFeeder.Helpers.EntLibHelper” threw an exception.
Most likely you have full event log. It took me some time… 🙂 EntLibHelper is a static class and it has a logger instance which fails to initialize when EntLibHelper is called. That results in a TypeInitializationException.