[bug] [new] Can't download all submissions on leaderboard

[ancatmara]

As an organiser, I can't download submissions to one of my competitions (another one works fine). When I click "Download all submissions on leaderboard", I get the following error: There was an error retrieving the file. Please try again later or report the issue. Trying again later doesn't change anything.

Here is the problematic competition: https://codalab.lisn.upsaclay.fr/competitions/16822

This issue is probably related to Issue 3458.

My browser is Firefox 121.0.1 (64-bit), and I added pavao as an admin of the competition.