Wipi door handle won't lock
Sounds like you're having trouble with the mortise lock, which is the hook mechanism you show in your first photo. A good way to confirm is to remove your handle set and then attempt to throw the mortise manually with a screwdriver (or anything flat that can get in there). If the hook still doesn't work, then that confirms it.
Assuming all you needed was the mortise, then I recommend our 82-218. If you find that your mortise works fine, though, then let me know. That means something else is broken, and we'll have to figure out what.
It locks if you partially let the hook out before you close the door, then push the lever all the way. Then it closes.
I want buy all new locks and replace them all.
I can't see your mortise to make a recommendation, but you could start with the 82-218 that I recommended above. Carefully compare its dimensions and design to what you have now. If it differs in any way, though, then I need to see yours.
