Unable to submit to repository

[Fòram na Gàidhlig <fios foramnagaidhlig net>]

Hi,

I am trying to use "Submit to Repository" like I have done for the past
few years, now, but I'm getting an error message:

"Committing a file requires a commit author."

I am not allowed to select myself as commit author, and nobody else is
in the dropdown list.

https://l10n.gnome.org/vertimus/229322/275

Any idea what the problem is?