New door handle needed?

When I opened the passenger door, I noticed that the lock just slid out of the door!

I had no idea how to fix this. So this could be my first case for the 3-month warranty.

But I had a look at the door, and I noticed a hole that was covered with plastic. Inside was something that could be pushed further in. And while the lock part was again put in place, I shoved that part further in, and it appeared to affix the lock. Some kind of bolt or latch, which is at each door and apparently had gotten loose at this door. 

So this could easily be fixed.