Accidental injury because of inappropriate location stage prop in the show. Asking for compensation for the injury

My name is Yi Wang and I bought 170$ ticket for sleep no more show on 5/1/15. During the show time, I was badly injured by one stage props. I was running after one actor but I hit an object in the dark. My left thigh was seriously injured because of internal hemorrhage. I was not able to walk because my left thigh was swelling awfully and painful. I had to call out my friend to ask them to send me to the nearest hospital for emergency treatment. I was not able to identify what object it was as it was too dark in the ballroom. Possibly, it was the base of one of the pillars in the ballroom. I was diagnosed as "serious hemorrhage of muscle ". It takes three weeks for recovery. This injury has cost me a lot physically and mentally. I would like to know how I can get compensate and if the law can protect me from harm and injustice.