Let's take a closer look...
There's an engineering problem out there.
1st - the person has replaced the wood screws to SS alen ones. That's already something...
2nd - don't see how this latch can work as the stop plate doesn't allow the latch bar to open enough... very strange...
3rd - the door gate has descend a bit, so the latch bar can't engage anymore, hence te nylon loop...
4th - they just lost the lock key...