We have a deck french door with a broken 3 point lock and the lock brand is ESSVE (1993).

The 3 point locks engage but the deadbolt will not actually hold them closed unless the handle is physically propped up. The doors and lock are in great shape except for a small piece in the deadbolt mechanism itself.

We've searched for a replacement lock, but these are no longer manufactured.

What can we do? A local locksmith, who didn't come look at it, said it wasn't something he could fix. Is there any way to find an out-of-production replacement?

Thanks so much for any help!