I just sent you a private message.
Found some info in the log.
Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'
I am using nop 2.4. I did follow your instructions. Other newly installed plugings works good.
My website is hosted by Arvixe. After I installed your Header Menu I got this error message:
We're sorry, an internal error occurred that prevents the request to complete.
Our supporting staff has been notified with this error and will address this issue shortly. We profusely apologize for the inconvenience and for any damage this may cause. You might want to try the same action at later time.
All other plugins worked just fine.
Please help me on this.