https://www.openstreetmap.org/way/1259791280/

Note that adding descriptive name such as "Bâtiment" is not needed - it is already marked as building.

Or do you maybe know that this specific building is specifically named "Bâtiment"?

If yes - how do you know this?

Do not worry too much about this issue - I made way worse mistakes when I was starting. Maybe some tool or explanation is confusing? Why you added this name? And if it was mistake - can you remove it?