It does it on both EP1-4 and EP5-8, so I don't think that reinstalling either of them would fix it.
The file is only supposed to contain the word 'debug'? Because I did that and nothing happened when I made it crash again. I put it in the file with the nscript.dat and the exe to run the game, and I made sure it was a CFG file rather than a TXT one.
For reference, this is what it looks like when it crashes.
Obviously, it doesn't respond however long I wait for it.