Yum failing check-update

This is due to a bug in the bodhi-4.0.0 release which is apparently in the framework of the epel repo infrastructure. The bug caused incompatible update files to be generated and pushed to the production repos. A new update has been released and the repos should be repaired soon.

it seems to be new version of bodhi (bodhi-4.0.0) deployed.it should fix this issue. Please refer this https://pagure.io/releng/issue/8392 .