Build help problem on l10n

Infrastructure
1

while trying to build help to verify my translation in Module Translation: rhythmbox
I get an error which said:

Error: page not found

The page you requested has not been found on this server.

https://l10n.gnome.org/vertimus/action/1069055/build_help/None/

Is this known problem?

2

I couldn’t find an open issue for this. Please file one at Issues · Infrastructure / damned-lies · GitLab

3