Error installing katello-agent, [Errno 14] PYCURL ERROR 56 - "NSS: client certificate not found: /etc/pki/entitlement/5834943018947716478.pem" Trying other mirror.

Issue

• Error installating katello-agent on a system registered to Satellite 6

# yum install katello-agent
Loaded plugins: aliases, changelog, downloadonly, refresh-packagekit, rhnplugin, security, tmprepo, verify,
              : versionlock
This system is not registered with RHN Classic or RHN Satellite.
You can use rhn_register to register.
RHN Satellite or RHN Classic support will be disabled.
Repo rhel-6-server-rpms forced skip_if_unavailable=True due to: /etc/pki/entitlement/5834943018947716478.pem
Repo rhel-6-server-rpms forced skip_if_unavailable=True due to: /etc/pki/entitlement/5834943018947716478-key.pem
Repo rhel-6-server-rh-common-rpms forced skip_if_unavailable=True due to: /etc/pki/entitlement/5834943018947716478.pem
Repo rhel-6-server-rh-common-rpms forced skip_if_unavailable=True due to: /etc/pki/entitlement/5834943018947716478-key.pem
https://sat1.example.local/pulp/repos/myOrg/Library/content/dist/rhel/server/6/6Server/x86_64/rh-common/os/repodata/repomd.xml: [Errno 14] PYCURL ERROR 56 - "NSS: client certificate not found: /etc/pki/entitlement/5834943018947716478.pem"
Trying other mirror.
https://sat1.example.local/pulp/repos/myOrg/Library/content/dist/rhel/server/6/6Server/x86_64/os/repodata/repomd.xml: [Errno 14] PYCURL ERROR 56 - "NSS: client certificate not found: /etc/pki/entitlement/5834943018947716478.pem"
Trying other mirror.
Setting up Install Process
No package katello-agent available.
Error: Nothing to do
[root@client1 yum.repos.d]#