Provide better except feedback

[aleksbobic]

Is your feature request related to a problem? Please describe.
Users should be able to understand what went wrong on the backend (or frontend) by seeing the error message popup on the frontend (currently that is not the case)

Describe the solution you'd like
For example: if a connection to elastic cannot be established the user should get that as an error message or at least a particular code indicating there is an issue with elastic.