Can not complete Provision or Deletion of Host due to same ERROR / seems related to Certificate

Problem:
Failed to delete host due to Unable to delete PuppetCA certififcate for the server.
Actual issue that brought me to this is that at point dracut should download unattended file, it fails and same Certificate issue message is logged. At this point I suspect its an certificate issue for this client, but I am not sure.

Expected outcome:
Delete the Host, so I can re-create it.

Foreman and Proxy versions:
foreman-proxy-1.15.6-1.el7.noarch
foreman-installer-1.15.6-2.el7.noarch
foreman-1.15.6-1.el7.noarch

Foreman and Proxy plugin versions:
foreman-proxy-1.15.6-1.el7.noarch
tfm-rubygem-hammer_cli_foreman-0.10.2-1.el7.noarch
foreman-selinux-1.15.6-1.el7.noarch
foreman-installer-1.15.6-2.el7.noarch
tfm-rubygem-foreman-tasks-core-0.1.8-1.fm1_15.el7.noarch
tfm-rubygem-foreman_remote_execution-1.3.7-1.fm1_15.el7.noarch
foreman-postgresql-1.15.6-1.el7.noarch
foreman-cli-1.15.6-1.el7.noarch
tfm-rubygem-foreman_setup-5.0.0-1.fm1_13.el7.noarch
tfm-rubygem-foreman-tasks-0.9.6-1.fm1_15.el7.noarch
tfm-rubygem-foreman_remote_execution_core-1.0.6-1.fm1_15.el7.noarch
foreman-release-1.15.6-1.el7.noarch
foreman-debug-1.15.6-1.el7.noarch
foreman-release-scl-3-1.el7.noarch
foreman-1.15.6-1.el7.noarch
Other relevant data:
[e.g. logs from Foreman and/or the Proxy, modified templates, commands issued, etc]
Its stand-alone server, installed using foreman-installer with Puppet and hosts are added using Hammer CLI

(for logs, surround with three back-ticks to get proper formatting, e.g.)

2019-01-11 14:41:08 8c2665db [app] [W] Delete PuppetCA certificates for autoperf-small01.avinity.tv task failed with the following error: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for autoperf-small01.avinity.tv ([RestClient::RequestTimeout]: Request Timeout) for proxy https://mgrun-foreman.avinity.tv:8443/puppet/ca
 | ProxyAPI::ProxyException: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for autoperf-small01.avinity.tv ([RestClient::RequestTimeout]: Request Timeout) for proxy https://mgrun-foreman.avinity.tv:8443/puppet/ca
2019-01-11 14:41:09 8c2665db [app] [I] Failed to save: Delete PuppetCA certificates for autoperf-small01.avinity.tv task failed with the following error: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for autoperf-small01.avinity.tv ([RestClient::RequestTimeout]: Request Timeout) for proxy https://mgrun-foreman.avinity.tv:8443/puppet/ca
2019-01-11 14:42:28 6ddd3019 [app] [I] Started GET "/hosts/autoperf-small01.avinity.tv" for 2a03:fc02:2:1:f961:2f48:3a02:db6 at 2019-01-11 14:42:28 +0000
2019-01-11 14:42:28 6ddd3019 [app] [I]   Parameters: {"id"=>"autoperf-small01.avinity.tv"}
2019-01-11 14:42:29 df2ba2ca [app] [I] Started GET "/hosts/autoperf-small01.avinity.tv/overview" for 2a03:fc02:2:1:f961:2f48:3a02:db6 at 2019-01-11 14:42:29 +0000
2019-01-11 14:42:29 df2ba2ca [app] [I]   Parameters: {"id"=>"autoperf-small01.avinity.tv"}
2019-01-11 14:42:29 3e133e08 [app] [I] Started GET "/hosts/autoperf-small01.avinity.tv/templates" for 2a03:fc02:2:1:f961:2f48:3a02:db6 at 2019-01-11 14:42:29 +0000
2019-01-11 14:42:29 1e21107b [app] [I] Started GET "/hosts/autoperf-small01.avinity.tv/nics" for 2a03:fc02:2:1:f961:2f48:3a02:db6 at 2019-01-11 14:42:29 +0000
2019-01-11 14:42:29 1e21107b [app] [I]   Parameters: {"id"=>"autoperf-small01.avinity.tv"}
2019-01-11 14:42:29 6e37251a [app] [I] Started GET "/hosts/autoperf-small01.avinity.tv/runtime?range=7" for 2a03:fc02:2:1:f961:2f48:3a02:db6 at 2019-01-11 14:42:29 +0000
2019-01-11 14:42:29 6e37251a [app] [I]   Parameters: {"range"=>"7", "id"=>"autoperf-small01.avinity.tv"}
2019-01-11 14:42:29 a41a7c24 [app] [I] Started GET "/hosts/autoperf-small01.avinity.tv/resources?range=7" for 2a03:fc02:2:1:f961:2f48:3a02:db6 at 2019-01-11 14:42:29 +0000
2019-01-11 14:42:29 a41a7c24 [app] [I]   Parameters: {"range"=>"7", "id"=>"autoperf-small01.avinity.tv"}
2019-01-11 14:42:30 3e133e08 [app] [I]   Parameters: {"id"=>"autoperf-small01.avinity.tv"}
2019-01-11 14:53:38 68e0ce72 [app] [W] Delete PuppetCA certificates for autoperf-small01.avinity.tv task failed with the following error: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for autoperf-small01.avinity.tv ([RestClient::RequestTimeout]: Request Timeout) for proxy https://mgrun-foreman.avinity.tv:8443/puppet/ca
 | ProxyAPI::ProxyException: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for autoperf-small01.avinity.tv ([RestClient::RequestTimeout]: Request Timeout) for proxy https://mgrun-foreman.avinity.tv:8443/puppet/ca
 |   Delete PuppetCA certificates for autoperf-small01.avinity.tv task failed with the following error: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for autoperf-small01.avinity.tv ([RestClient::RequestTimeout]: Request Timeout) for proxy https://mgrun-foreman.avinity.tv:8443/puppet/ca
2019-01-11 14:55:38 44d3eafd [app] [W] Delete PuppetCA certificates for autoperf-small01.avinity.tv task failed with the following error: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for autoperf-small01.avinity.tv ([RestClient::RequestTimeout]: Request Timeout) for proxy https://mgrun-foreman.avinity.tv:8443/puppet/ca
 | ProxyAPI::ProxyException: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for autoperf-small01.avinity.tv ([RestClient::RequestTimeout]: Request Timeout) for proxy https://mgrun-foreman.avinity.tv:8443/puppet/ca
 |   Delete PuppetCA certificates for autoperf-small01.avinity.tv task failed with the following error: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for autoperf-small01.avinity.tv ([RestClient::RequestTimeout]: Request Timeout) for proxy https://mgrun-foreman.avinity.tv:8443/puppet/ca

I would appreciate some pointers or suggestions.
Thank you!