Live closes whenever I try flattening a midi track

[jennieo]

So, I've been freezing and flattening my midi samples into audio for my whole set, and today when I've been trying to do so, Live freezes and closes itself whenever I try to flatten midi loops. I've tried restarting live like ten times and restarting my laptop, what can I do to fix this? I have a show in a couple of hours and I need to get this fixed!