Insights registration fails with error "Machine-id found, insights-client can not be registered. Please, unregister insights-client first: `insights-client --unregister`"

Issue

• insights-client --register fails with below error on the client registered to satellite:-

  # insights-client --register
  Machine-id found, insights-client can not be registered. Please, unregister insights-client first: `insights-client --unregister`
  

• Error in /var/log/insights-client/insights-client.log:-

  2023-04-13 13:54:36,470    DEBUG insights.client.utilities Client version: 3.1.7
  2023-04-13 13:54:36,470    DEBUG insights.client.utilities Core version: 3.1.18-1
  2023-04-13 13:54:36,470    DEBUG insights.client.utilities All egg versions:
  2023-04-13 13:54:36,470    DEBUG insights.client.utilities ENV egg not defined.
  2023-04-13 13:54:36,646    DEBUG insights.client.utilities /var/lib/insights/newest.egg: 3.1.18-1
  2023-04-13 13:54:36,647    DEBUG insights.client.utilities /var/lib/insights/last_stable.egg not found.
  2023-04-13 13:54:36,824    DEBUG insights.client.utilities /etc/insights-client/rpm.egg: 3.0.246-1
  2023-04-13 13:54:36,825    DEBUG insights.client.client Trying registration.
  2023-04-13 13:54:36,826    DEBUG insights.client.connection Checking registration status...
  2023-04-13 13:54:36,826    DEBUG insights.client.utilities Found /etc/insights-client/machine-id
  2023-04-13 13:54:36,826  NETWORK insights.client.connection GET https://Satellite:443/redhat_access/r/insights/v1/systems/xxxxxx-2879-xxxxxx-8b2b-xxxxxe34
  2023-04-13 13:54:37,149  NETWORK insights.client.connection HTTP Status: 500 Internal Server Error
  2023-04-13 13:54:37,149  NETWORK insights.client.connection HTTP Response Text: {
    "error": {"message":"404 Not Found"}
  }
  
  2023-04-13 13:54:37,149    DEBUG insights.client.connection No HTTP Response message present.
  2023-04-13 13:54:37,149    DEBUG insights.client.connection Debug Information:
  HTTP Status Code: 500
  2023-04-13 13:54:37,149    DEBUG insights.client.connection HTTP Status Text: Internal Server Error
  2023-04-13 13:54:37,149    DEBUG insights.client.support Registration status: False
  2023-04-13 13:54:37,149     INFO insights.client.client Machine-id found, insights-client can not be registered. Please, unregister insights-client first: `insights-client --unregister`