Problem with website: 404 link

Hello,

I was browsing the page https://packages.debian.org/buster/ffmpeg and I got
a 404 when I clicked the link displayed on the right side of the page
called "Debian Changelog" (current URL is
https://metadata.ftp-master.debian.org/changelogs//main/f/ffmpeg/ffmpeg_4.1.10-0+deb10u1_changelog
).

At the bottom of the website it says: "To report a problem with the web
site, e-mail [email protected]. For other contact information,
see the Debian contact page."

So that's why I'm reporting it this way.

For context, if it helps, my goal was to learn more about how version of
Debian packages are tracked and to learn how often the major version of
this particular package changes.

Thanks!
Matt