Rented a room out?

I rented a room out on Aug 1. She paid rent in cash that day. She did not sign a lease. She has not been home in 3 weeks and the rent was due on Sept 1. She wont return my calls or my text messages. I heard that she was fired from her job and have no way of contactimg her otherwise. I dont know what I can do legally on California. All of her stuff is still in her room. Any help would be so appreciated. If you know who I can contact or anything. Thanks!