Help! Door locks problem

Hello guys, I need your help on this one. So this is what happened. I went to walmart and locked my car and then when i came back door locks is open. Then i tried it again at my place. It did the same thing. My door locks keeps opening.
Any idea what is causing this?

Check your fuses. Sometimes when your vehicle pops fuses it prevents doors from locking so you cant lock yourself out

Also, make sure ALL doors are entirely shut. If just one is open a tiny bit the doors sound like they like but actually don't.