It activates my anti-virus every time at the same spot post-update. If I turn it off it still crashes.
If it's activating your anti-virus it might be that your anti-virus quarantined a file the game needs at that point. You might need to check your anti-virus's log after extracting the game to see if it has quarantined anything.
If that doesn't work, does it crash when pressing submit, mid-screen transition, or at some point after returning to the trial scene? I'm not seeing any errors in the code so far, but usually a memory related crash wouldn't happen so consistently in the same spot...