[Satellite6]: Segfault core dump generates while registration of clientVM to Red Hat Satellite.

Issue

# subscription-manager register --org="Default_organization" --activationkey="Key1"
/usr/lib64/python2.6/site-packages/rhsm/certificate.py:99: DeprecationWarning: Call to deprecated function: __init__
  category=DeprecationWarning)
Segmentation fault (core dumped)

OR

# subscription-manager register --org="Default_organization" --activationkey="Key1"
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
https://satellite.example.com/pulp/repos/content/dist/rhel/server/7/7Server/x86_64/os/repodata/repomd.xml: [Errno 14] curl#35 - "Peer does not recognize and trust the CA that issued your certificate."