According to
https://www-manoeuvres--ascenseurs-...r_tl=en&_x_tr_hl=en&_x_tr_pto=scBC is related to Brake Control
I am assuming this is a traction unit, e.g. with an OVF drive, and perhaps an LCB II main control board.
Maybe check the brake circuit contactors and brake lifted contact. It could be that you have a faulty contactor or switch in there somewhere.
If the software doesn't see the brake lifting properly, it's probably going to shut down the elevator rather than attempting to "pull through" the brake which is still dropped. That would explain why the elevator stops 1 inch above the floor.
