Description of problem:
[ALL LANG] Unexpected code and Unlocalized strings in the pop-up error messages box when registering system with 'Connect this system to Red Hat Insights'.

Version-Release number of selected component (if applicable):
subscription-manager-1.29.30-1.el9.x86_64
subscription-manager-cockpit-4-1.el9.noarch

How reproducible:
100%

Steps to Reproduce:
1. Open RHSM Cockpit Client via click Applications - System Tools - Red Hat Subscription Manager on the top menu bar from desktop or type subscription in the search field and press the Enter key.
2. Click Register button in Subscriptions dialog box.
3. Select Custom URL and input the correct URL.
4. Input the correct Username and Password.
5. Select the 'Connect this system to Red Hat Insights' checkbox.
6. Click Register button.

Actual results:
[ALL LANG] Unexpected code and Unlocalized strings in the pop-up error messages box when registering system with 'Connect this system to Red Hat Insights':

Unable to fetch egg url https://cert.cloud.stage.redhat.com/api/module-update-router/v1/channel?module=insights-core: 403: Forbidden. Defaulting to /release

Automatic scheduling for Insights has been enabled.

Starting to collect Insights data for localhost.localdomain

Uploading Insights data.

Upload attempt 1 of 1 failed! Reason: 403: Forbidden

All attempts to upload have failed!

Please see /var/log/insights-client/insights-client.log for additional information

Upload failed.

Expected results:
1. No such debug info and code in the error message box.
2. The strings should be localized in the error message box.

Additional info:
Please see the attached screen-shot.