Host registration fails with Error loading certificate: [Errno 2] No such file or directory: '/etc/pki/consumer/cert.pem'

Issue

• Registering hosts to the Satellite server using the global registration method fails with the below errors.

  # Running registration
  #
  This system is currently not registered.
  All local data removed
  subscription-manager is already installed!
  Error loading certificate: [Errno 2] No such file or directory: '/etc/pki/consumer/cert.pem'
  This system is not yet registered. Try 'subscription-manager register --help' for more information.
  curl: (60) SSL certificate problem: self signed certificate in certificate chain
  More details here: https://curl.haxx.se/docs/sslcerts.html
  
  curl failed to verify the legitimacy of the server and therefore could not
  establish a secure connection to it. To learn more about this situation and
  how to fix it, please visit the web page mentioned above.
  

• Manual registration using subscription-manager returns the below certificate errors.

  # subscription-manager register
  ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)