Improve trace message on frontend for db error

[savacano28]

Description

Currently, we pass the technical error directly to the frontend:
pre release trace

So maybe we should improve this message (or remove it?).

Environment

1. Obas

Reproducible Steps

Steps to create the smallest reproducible scenario:

1. Execute an inject
2. Delete agent
3. Found message in the Execution details

[jborozco]

Not sure how this is a bug @savacano28