My friend and I wanted to play on tekkit but every time I try to open it it instantly closes. I tryed doing it by running it as administrator on it it still closes, I did the same with the comand prompt and typed in C:\users\[my name]\downloads\tekkit_server_2.1.1\launch.bat but that didnt work either. I would be very thankful to anyone who can help me and will give them a slot to my server.