Dear all,
I have been using a Flarum instance as a private forum in French for 5 years now, and I am really glad with it, so thank you!
I have been trying to solve a problem of date display. As soon as posts get old enough, the day number is replaced by a “J” (for jour, “day” in French):


Same happens with months (“M”) and years (“A”, année):


I could post my config (PHP 7.4.33, Flarum 1.8.10, French package of flarum-lang 4.28.0), but I think that something has changed on the (shared) hosting, rather than on my config.
Do you have any idea of what could explain this? What could I do to change it?
Thanks a lot!