Are there any workarounds, for an inexperienced user who does not know much
about guix? I am getting 404's for

-
https://bordeaux.guix.gnu.org/nar/zstd/arnx6fnjq85wscmr894d64cj3529r3h1-wxPython-4.2.0.tar.xz
-
https://bordeaux.guix.gnu.org/nar/zstd/26q8viimh3r73549drqigvz07kl9v6pr-webkitgtk-2.40.1.tar.xz

After a recent guix pull to 3807876 of
https://git.savannah.gnu.org/git/guix.git