DarthEmpress You shouldn't need to use laptop mode, and even if that addressed the issue, I wouldn't consider it a proper fix because it's basically disabling Advanced Rendering and all the graphics features that come with it. (This isn't a criticism of the idea, just in case that's what you're hearing; all I'm saying is you should be able to play with better graphics.) So please disable laptop mode again, but leave DX9 mode on for now.
With the worlds, I was mostly wondering about Innisgreen and whether you get more crashes there. Several lots are triggering crashes for a least some players; the other occult worlds don't seem to be triggering any crashing right now, nor have they been an obvious problem in the past. But if the game is crashing in Willow Creek, with no mods or custom content and nothing from the Gallery, that's a separate matter.
Going forward, please look for a Reliability Monitor report for any crash you get. Click Windows key-R and enter "perfmon /rel" without quotes, and you'll see a chart of errors and updates with a column for each day. Today is on the right.
Look for an error that happened at exactly the time of your most recent Sims 4 crash. If you find one, double-click it to see more details, then copy that info and paste it into a reply here. If you don't see a new error, check back in an hour or so—the Reliability Monitor doesn't always update right away.
Please list each crash along with the lot you were playing, and if it's not an Innisgreen lot, what you and your sims were doing at the time. You don't need to post separately for each crash if you don't want to; a text document with this info would be equally helpful.
If you do get a crash in Innisgreen, please also look for a corresponding lastcrash file in Documents > Electronic Arts > The Sims 4. If you find one, open it and delete its first line, then attach it to your reply as well. I can't do much with these files, and they're generally not informative for individual troubleshooting, but they may be helpful to EA in terms of investigating the issue with Innisgreen lots overall.