Update WSOD error message

Problem/Motivation

We've all seen: The website encountered an unexpected error. Try again later.

I recently saw some confusion about the try again layer clause. Someone who was not super technical expected it to resolve itself. They actually needed to run database updates.

Steps to reproduce

Proposed resolution

Remove try again later.
Discuss adding context your developer or something else.

Remaining tasks

User interface changes

Introduced terminology

API changes

Data model changes

Release notes snippet