ERROR: unable to load package Pall 0ad-data 0.0.25b-1 94979ea1862b17fc: key not found

[EajksEajks]

Whenever I try to publish snapshot or publish switch, some of my snapshots give the following error message.

ERROR: unable to load package Pall 0ad-data 0.0.25b-1 94979ea1862b17fc: key not found

If I try to cleanup the database, I get the exact same message:

# aptly db cleanup
Loading mirrors, local repos, snapshots and published repos...
Loading list of all packages...
Deleting unreferenced packages (0)...
Building list of files referenced by packages...
ERROR: unable to load package Pall 0ad-data 0.0.25b-1 94979ea1862b17fc: key not found

I also have no idea what I should do:

• If I try to mirror again, aptly doesn't download anything as it finds that everything is perfectly okay
• I can't publish anything from the corresponding snapshots.

[EajksEajks]

aptly version = 1.3.0 (on Ubuntu 20.04.5)