<pre>
# pacman -S lua53-lgi
....
extra/lua53 5.3.6-1 1.05 MiB
community/lua53-lgi 0.9.2-7 0.66 MiB 0.23 MiB
....
:: Retrieving packages...
lua53-lgi-0.9.2-7-x86_64.pkg.tar.zst failed to download
error: failed retrieving file 'lua53-lgi-0.9.2-7-x86_64.pkg.tar.zst' from repo.parabola.nu : The requested URL returned error: 404
warning: failed to retrieve some files
error: failed to commit transaction (failed to retrieve some files)
Errors occurred, no packages were upgraded.
</pre>


the file really is missing - this suggests a general class of problems, which could be addressed with better tooling
(see #3178)