Public Ip 8100 is not reflecting for the latest version of ionic2?

I need an urgent guidance! i was building my website on ionic2 version 1.37. Than the amazon server updated to ionic2 version2.0 . Now thewebsite is not working. We are close to launch.

Need guidance for -

  1. What are the fastest migration step?

  2. Command ionic run browser is not reflecting anything on the public ip 8100.