Hi Vikas,

You are using a wrong port to launch UUI. If you use port 30398, you can still launch UUI application but data are unavailable. you can not fetch for instance data from AAI you will get 404.

If you want to explore Network Slicing usecase, use the below link for UUI.  
https://hostIP:30283/iui/usecaseui/#/services/slicing-management

Also you can refert to readthedocs UUI documentation.


Thanks,
Kamel