My Sims 4 Game Crashed Last Night

SimSeeker​  A lastcrash file is mostly useless to those of us who don't work for the studio.  And I'm not sure what you mean when you ask where you can find other discussions about crashing.  This is exactly the forum for that, at least for those playing in Windows.

If this is an isolated crash, ignore it.  The game is grumpy and can crash for no good reason.  That's especially true for crashes that happen in the run of play, as opposed to on launch or during travel or at some other transition.

If it happens again, make a note of the context—lot, world sims present, outfits, activities, sim-time of day, etc.—so you can figure out whether there's a pattern.