dear sir:

first time the project work good >>
after after that it show me that the project is not valiable
please lead me to how i can elimanite this problem

You didn't post any error messages so it's impossible to help you.

You should study a beginner book on ASP.NET. This book assumes you know the basics already.

Deloying a website is a challenge and this is not a good place to learn this skill.

Eric