It looks like staging koji is having a difficult time, I'm not able to build anything in it :(
Last attempt: https://koji.stg.fedoraproject.org/koji/taskinfo?taskID=90481623
A koji prod to stg sync is happening (https://pagure.io/fedora-infrastructure/issue/8334) which is likely the reason why you are having problems.
I think the sync takes many hours so it might be better to try that again tomorrow :-).
Feel free to re-open if it is still broken.
Metadata Update from @cverna: - Issue close_status updated to: Will Not/Can Not fix - Issue status updated to: Closed (was: Open)
The issue had started before the sync, but let's see if the sync fixes it :)
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