Last Exception error

@Nakina223 The full error stack is pointing to adeepindigo's Education Overhaul. You're on an older version of that and also have duplicate files of it. Often with her mods, which have complex requirement, the best option is to completely delete them all and reinstall, reading the instructions carefully. These also haven't been confirmed compatible with 1.109 yet

but also

- check this HTML file for the duplicates identified in it; open the part about packages and skim down for everything in red
- update MCCC; it's on 2024.6.0 now

- update PSO Shared Library

- check your Child Birth Mod for updates
- update Better BuildBuy
- update UI Cheats Extension
- I don't track QMBibi mods, but check them for updates and suspect them of being broken; delete anything made by them first if possible

- Check the file dates on your KiaraSims mods - some are 1979; delete those and redownload
- You have some LittleMsSam mods where you haven't picked a version - for example, with Better Nanny, you have to pick *which* age you want nannies to be and delete the other files, and same for when they were. Go back to the installation instructions on your LMS mods.

- remove Luumia's Height Slider - it's broken
- check your Miiko mods against my pinned list (previously broken); I think one might be on that. Same with your Obscurus mods.
- check if your Zulf Arcade Object mod is the most recent version

- there's a set of items near the end of the .package file list with odd characters in the names; these might be causing you issues of some kind, so test without them temporarily

- check the broken/updated list (pinned) for some CC that has new versions out, unless you've done a Sims 4 Studio DX11 batch fix

- check your 18+ mods for updates