[ovirt-users] Add external provider (Failed with error PROVIDER_FAILURE and code 5050) foreman 1.9

Hello, I have a working foreman 1.9.1 installed with katello 2.3. As required, ruby193-rubygem-ovirt_provision_plugin-1.0.1-1.el7 is also installed on the same host. But the issue is the same as below when testing in "add external provider" from ovirt 3.5.4. Is it a known bug?