Hi. There was a thread about this a while ago. I listed all the settings I needed when creating a big game.
Without understanding the error you’re getting, you could try and paste them all in and see if error goes away, then remove them 1 by 1 till you identify which it is?
Also, are you developing your game as a z8 or Glulx? At some point you have to move up to Glulx via the Settings panel when game gets big (given you’ve hit 70k words, I assume it is already glulx).