Description of problem:
"Unable to fetch egg url" error while trying to register host with Insights

Version-Release number of selected component (if applicable):

• Satellite 6.15.0

How reproducible:

• always

Steps to Reproduce:
1. Try registering Satellite content host with Insights.

Actual results:
Unable to fetch egg url https://satellite.example.com:443/redhat_access/r/insights/platform/module-update-router/v1/channel?module=insights-core: 500: Internal Server Error. Defaulting to /release

Expected results:
No such error, insights egg fetched successfully

Additional info:

QE Tracker for https://issues.redhat.com/browse/SAT-21920
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2267693