@MisterSidternay That mod might be the issue here. It's known to cause save corruption and also to be incompatible with a number of NRaas mods, in various ways. I don't know that you can fix the save from here, although there's no harm in trying.
I would suggest though that if you're willing to play without it (and I know the alternatives aren't quite the same), that you use a new Sims 3 folder to do so. I've read previous reports of KW corrupting user folders and affecting new saves even after it's removed, although that may not be an issue anymore. Still, it's simple enough to switch folders, and transfer your Store content if necessary, when you're starting a save that's not going to use the mod.