Description of problem: 'private' group name has been replaced by 'fedora_contrib_private' (bug #1044653). Unfortunately, some users still use the deprecated name because the name is stored in GUI configuration which cannot be automatically updated.
I have created the following pull quest for this bug report: https://github.com/abrt/libreport/pull/254
abrt-2.2.1-1.fc20,libreport-2.2.2-1.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/abrt-2.2.1-1.fc20,libreport-2.2.2-1.fc20
Package abrt-2.2.1-1.fc20, libreport-2.2.2-1.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing abrt-2.2.1-1.fc20 libreport-2.2.2-1.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-5488/abrt-2.2.1-1.fc20,libreport-2.2.2-1.fc20 then log in and leave karma (feedback).
Package libreport-2.2.2-2.fc20, abrt-2.2.1-1.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing libreport-2.2.2-2.fc20 abrt-2.2.1-1.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-5488/abrt-2.2.1-1.fc20,libreport-2.2.2-2.fc20 then log in and leave karma (feedback).
libreport-2.2.2-2.fc20, abrt-2.2.1-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.