Sorry for the delay. You have not missed the window for translations - we've just been stuck trying to resolve the authentication issue, and have recently decided to seek external support for this.
Very shortly Artefactual will be moving the AtoM translations to a Weblate instance hosted by the Weblate team itself, rather than us attempting to self-host the translation software. This will allow us to focus on our projects instead of troubleshooting an application we're not fully familiar with, and ensure we have support from the developers in maintaining our Weblate version - meaning we can also get our Weblate installation upgraded, so users can enjoy the latest features. We hope this will mean setting up support for other social authentication methods, such as with a Google Account, since many archivists are more likely to have one of those accounts already rather than a GitHub one. Additionally, this allows us to support another business with a similar business model, releasing open source software while providing additional services.
We are just in the process of coordinating this now. Once we've had a chance to properly reconfigure everything and we're ready to reopen the 2.7 translations, we'll make an announcement in the forum.
In the meantime, thanks in advance for your patience as we work to resolve this!