repeated crashing

@friedn00dles666  It's odd that you'd get that error now.  It's usually a permissions issue, despite the text of the error message, although it can be caused by mods or a corrupt install.  It's just more common that something is blocking Sims 4's access to the user folder.  What antivirus do you use, and does it help to (temporarily) disable the antivirus?

Please also try playing in a new admin Windows account.  Make it local, as in, don't link it to your Microsoft account; this prevents OneDrive from interfering with the account's data.  You'll be able to launch Sims 4 without reinstalling anything, but your user data won't be available, of course.  You can try it both normally and in a clean boot, in whatever order you want.

@puzzlezaddicti completely agree. i was pretty surprised when i got the error. im going to double check again on everything that i'd put back in my mods folder for if i end up moving those over to a new save. but i couldn't find any culprits in there so far.
i believe i just use the default antivirus for my device, i bought it last month so i still have a deal automatically that assigned me one. so just Windows Security. i regularly keep a check/run scans on my device, and so i'll make sure i try that step as well with the game perhaps interfering.

thank you for the idea about the new admin. i can definitely do that, i can see why that could actually be a solution. I will work on that later today and report back with any changes. thank you 🙂

edit: I also want to note that recently i had been trying out CurseForge to manage a portion of the modding process for my game. is there any chance that negatively impacted my game? i plan to just go back to my old school mod organizing methods because over a decade's force of habit lol but i just wanted to note this as well just in case there's something that could have been impacted.

@friedn00dles666  The main problem with CurseForge, as far as I can tell, is that it offers mods that haven't been updated yet (or CurseForge hasn't received and approved the updates) as if they're fully compatible with the current patch.  So someone can download the newest available versions of their mods and still be installing content that will make Sims 4 stop working.

I wasn't aware that you'd added back your mods already.  In that case, the error may well be mod-related, and I would suggest you not use any mods until the game is stable again.  Definitely avoid CurseForge or any other mod manager that would add to or change the contents of your Mods folder automatically, at least for now.  While troubleshooting, you need to know exactly what's in that folder and why so you can keep track of everything yourself.  There is no mod manager out there that will tell you when you have an outdated or otherwise nonworking mod.