Error - An error has occured error is showing when (on Load) opening any catalog item on SP

[akashyada1]

Hello team 

As I am opening every catalog item on service portal I am getting an Error - "An error has occured"

This is happening in my DEV environment after successful cloning with PROD instance but this error is not occurring in the PROD environment 

Kindly  refer below screen shot 

Please assist to debug this 

@Ankur Bawiskar 

[Ankur Bawiskar]

@akashyada1 

Did you check the browser console logs?

Both dev and prod are on same release?

Did you check which widget is possibly causing the issue here?