It looked like it kept crashing due to some triggering event. There is a trick you can do for this sometimes:
1. Start I:R in debug mode by going to the start options in Steam and adding "-debug_mode"
2. Load your save.
3. Let it run a couple of days. Then save it.
4. Quit I:R
5. Open your save in Notepad++ and scroll to the bottom of the save file
6. Search for the date of the crash, like "date=YYY.MM.DD" e.g. "date=696.4.2" for April 2, 696 AUC
7. Find those dates that have "triggered_event { }" and delete those lines with everything in the curly brackets, which includes the trigger date.
8. Save the save file in Notepad++
9. Remove debug mode from the Steam start options
10. Load your save in I:R and see if it will go past the date.
This doesn't always work, but sometimes it does. It seems to have worked this time. I've attached your edited save here. Try it out. You might get a crash at another point in time though, and you can try this trick again. In any case, the timeline extender doesn't add events this early, so I don't see how this could be what is causing your crash. Since you're using the Crisis mod, maybe
@Diskianterezh can take a look if you get more crashes.