We are seeing this error as of the last couple of version updates:
"Attempted to download a file from "https://github.com/eventespresso/languages-ee4/raw/refs/heads/master/event_espresso-en_AU.po" but encountered a "404 File Not Found" error."
It happens in admin, as well as on the front end of the website.
Event Espresso 5.0.45
Wordpress 6.8.2
php 8.1.x
All browsers
Site language: English (Australia)