Item Not Found in portal when clicking on show item details link Layer List widget menu?

[MayurDodiya]

Hi All,

I created app using Web App builder from portal, in widget Layer List I have menu option (Zoom to, Transparency, Open attribute table & Show Item details).

When I clicked on Show item details I am getting error in portal 

"Item Not Found" 

The item you requested cannot be found.

The item may have been deleted or you may have entered an incorrect URL.

I have all the web maps & feature layers available in portal. no changes were made in portal, before it was working and redirecting to item details page but, suddenly now its showing item not found.

How do i get back the item details for each layer and by clicking on Show item details menu it should redirect to the correct item id to display item details?

Any suggestion would be appreciated!

Thanks,

[JonathanQuinn]

If you used the browsers dev tools or Fiddler, can you determine why the item can't be found?  Is it a 404 error, meaning it really doesn't exist, or a perhaps a 498, indicating that the sharing properties have been changed and you don't have access anymore?