I am experiencing the same issue.
I have upgraded the Firewall from 8.0.3 to 8.0.20. I am unable to check for Applications and Threats. It seems that it not available.
I also receive the same error as Gilpatrick84 when trying to manually upload the content file.
I have valid licenses and I have connectivity.
I cannot upgrade to pan OS 8.1.0
Need help urgently.
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