Game crashing, trying to make sense of it

The earliest released of the EP/SPs had their own version numbers and updates that were independent of the overall patching system that was implemented after Late Night was released (or maybe it was Generations, somewhere around there). Not having those updates now doesn't really make any difference, what they changed was for the most part cosmetic. But that is what CLA is complaining about. It never was a very useful tool.

The Access Violation errors really just mean that your game has crashed and don't provide any useful information either.

The most common causes of these crashes are "bad" CC that the game suddenly tried to use where it might not have before, poorly made or outdated mods, or yes the game trying to reach for more RAM than it can get or can possibly use. TS3 is still a 32-bit only application and the most RAM it can possibly work with before it becomes unstable, crashes, or Error12s upon trying to save is ~3.7 GB.

It may be a RAM issue, seeing as similar messages popped up with dates from ages ago, and I don’t remember getting rid of any CC or anything like that. Just a temporary screw up and should be fine after I delete cache files...

I encounter that a lot in larger worlds with bigger saves. Try using Kuree's Save Cleaner often and doing a MC Reset Everything to clean up all stuck sims, objects etc.