My phone is stuck on twrp after failed flashing 12.1 cyanogenmod

I followed all the steps to flash a rom onto my s3 mini. See this picture to see the problem: http://postimg.org/image/j4invhd0v/ I can transfer files using adb, but when i boot the phone, it goes automatically to TWRP. And when i try to flash the rom, that thing in the photo happens, basically my phone is gone now... Please help, this is quite urgent.