Mac book pro won't detect my external superdrive

I just got a 2012 macbook pro. it has the 10.9.4 update. it doesn't come with a superdrive so i bought an external one. it worked for one day but when i tried to plug it in today nothing happened. The Mac didn't even recognize it. when I opened the DVD Player on my computer manually it says there is no disk or drive found. please help I don't know what to do.