The checksum was added by the Radioactive mod. If you make any alterations to the code that will come back as a fail, but has little to do with whether the code works correctly or not. Not sure I can help you with why it won't start without a traceback.and the unpack location is fine? because I got a checksum error when I tried running it
I unpacked it and it created a GUI folder. And everything goes there. And when I try to run the game it won't start.
and the checksum fail: