@OneSmugPuggo Does ErrorTrap throw an error when the crash happens? You'd get a scripterror in Documents > Electronic Arts > The Sims 3. If you find one or more from the time of the crash, you can start a thread on the NRaas site and upload the error(s), specifically by dragging and dropping the files themselves into the text box where you'd type your post.
If ErrorTrap is throwing errors when you load the game, they might just be routine cleanup, but the people at NRaas could check them to make sure. I myself am not very skilled at reading these files, hence my suggestion to take them to NRaas.
If you're not getting errors, or you want to try troubleshooting on your own first, add NRaas MasterController and run a town reset while your sims are in the future. Click on the base camp, choose NRaas > MC > Town Options > Reset Everything, let it finish (it might take a few minutes), then use "save as" to rename the save. Quit to desktop and delete the five cache files in the same Sims 3 user folder:
- CASPartCache.package
- compositorCache.package
- scriptCache.package
- simCompositorCache.package
- socialCache.package
If that doesn't help, let me know. There are plenty of possible reasons for this kind of crash, including certain graphics rendering issues present only in the 64-bit version of Sims 3, so it might take some testing to sort this out.