Giovanni Biscuolo <g@xelera.eu> writes:

> I use emacs-elfeed-org to organize my feeds for emacs--elfeed.
>
> After my last upgrade to Emacs 27.1 I get this error in the Messages
> buffer when I try to "M-x elfeed":

[...]

I've filed an issue upstream:
https://github.com/remyhonig/elfeed-org/issues/56

I confirm that rolling back to Emacs 26.3 I have no issues.

Thanks! Gio'

-- 
Giovanni Biscuolo

Xelera IT Infrastructures