[Borgbackup] 'Multiple repos with the same ID' error

[ypm.tmp]

I had deleted the cache before writing my first message in order to try to fix
it. Now I did it again and the same error (Cache, or information obtained from
the security directory is newer than repository - this is either an attack or
unsafe (multiple repos with same ID) is being returned.

Yes, I do make backups to several external USB drives, and I have a script that
iterates to each drive sequentially, but never making multiple backups at once.
All syncs were always completed before I unplugged the drives.

I had read the wiki and the only info I found about this error on the wiki was
on the "All about JSON: How to develop frontends" page [1]

Does anybody know if there is any way that I can access the data of my backup
now?

Regards,
ypm

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[1]: https://borgbackup.readthedocs.io/en/stable/internals/frontends.html#message-ids