@edward-rancourt Try the freeze function an each track. If one track crashes the program while freezing you know that this track causes the crash.
Create a new track as a copy of the crashing track. Try to freeze the new track. If it works, then delete crashing track. Your project should export fine after doing this.
turns out it was the stereo processor and reverb plug ins causing issues. it was on the SSD5 drum track. turned those off, hit save and was able to export no problem.